[
  {
    "id": "NPX-P01",
    "scene_family_id": "NPX-FAMILY-P01",
    "partition": "practice",
    "title": "One among another kind",
    "setup": "A tray holds one cup and two spoons. Count cups only.",
    "variation": "category filter",
    "questions": [
      {
        "id": "NPX-P01-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "1",
        "form_observable": true
      },
      {
        "id": "NPX-P01-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "one cup",
        "form_observable": true
      },
      {
        "id": "NPX-P01-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "cup",
        "form_observable": true
      },
      {
        "id": "NPX-P01-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the tray",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P02",
    "scene_family_id": "NPX-FAMILY-P02",
    "partition": "practice",
    "title": "Three in a row",
    "setup": "Lay three books in a row on a mat. Each book is separately visible.",
    "variation": "one-to-one counting",
    "questions": [
      {
        "id": "NPX-P02-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "3",
        "form_observable": true
      },
      {
        "id": "NPX-P02-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "three books",
        "form_observable": true
      },
      {
        "id": "NPX-P02-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "books",
        "form_observable": true
      },
      {
        "id": "NPX-P02-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the mat",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P03",
    "scene_family_id": "NPX-FAMILY-P03",
    "partition": "practice",
    "title": "Spread without adding",
    "setup": "Show four balls together, then spread the same four across the mat without adding or removing any.",
    "variation": "quantity despite spacing",
    "questions": [
      {
        "id": "NPX-P03-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "4",
        "form_observable": true
      },
      {
        "id": "NPX-P03-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "four balls",
        "form_observable": true
      },
      {
        "id": "NPX-P03-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "balls",
        "form_observable": true
      },
      {
        "id": "NPX-P03-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the mat",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P04",
    "scene_family_id": "NPX-FAMILY-P04",
    "partition": "practice",
    "title": "One remains after removal",
    "setup": "Start with three plates on the tray. Move two to the shelf; count only the tray.",
    "variation": "removal and scope",
    "questions": [
      {
        "id": "NPX-P04-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "1",
        "form_observable": true
      },
      {
        "id": "NPX-P04-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "one plate",
        "form_observable": true
      },
      {
        "id": "NPX-P04-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "plate",
        "form_observable": true
      },
      {
        "id": "NPX-P04-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the tray",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P05",
    "scene_family_id": "NPX-FAMILY-P05",
    "partition": "practice",
    "title": "Add across the singular boundary",
    "setup": "Place one plant pot on the table, then add a second. Ask about the final visible group.",
    "variation": "one becomes several",
    "questions": [
      {
        "id": "NPX-P05-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "2",
        "form_observable": true
      },
      {
        "id": "NPX-P05-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "two plant pots",
        "form_observable": true
      },
      {
        "id": "NPX-P05-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "plant pots",
        "form_observable": true
      },
      {
        "id": "NPX-P05-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the table",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P06",
    "scene_family_id": "NPX-FAMILY-P06",
    "partition": "practice",
    "title": "Different examples, same kind",
    "setup": "Place three visibly different baskets on the table. All are baskets despite their different uses.",
    "variation": "category across exemplars",
    "questions": [
      {
        "id": "NPX-P06-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "3",
        "form_observable": true
      },
      {
        "id": "NPX-P06-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "three baskets",
        "form_observable": true
      },
      {
        "id": "NPX-P06-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "baskets",
        "form_observable": true
      },
      {
        "id": "NPX-P06-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the table",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P07",
    "scene_family_id": "NPX-FAMILY-P07",
    "partition": "practice",
    "title": "One large item, several small distractors",
    "setup": "Place one large ball and four small blocks on the tray. Count balls, not size or all objects.",
    "variation": "size is not quantity",
    "questions": [
      {
        "id": "NPX-P07-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "1",
        "form_observable": true
      },
      {
        "id": "NPX-P07-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "one ball",
        "form_observable": true
      },
      {
        "id": "NPX-P07-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "ball",
        "form_observable": true
      },
      {
        "id": "NPX-P07-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the tray",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P08",
    "scene_family_id": "NPX-FAMILY-P08",
    "partition": "practice",
    "title": "Visible separated stack",
    "setup": "Place four books on the shelf with every cover or spine individually visible; separate them if overlap is ambiguous.",
    "variation": "segmentation",
    "questions": [
      {
        "id": "NPX-P08-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "4",
        "form_observable": true
      },
      {
        "id": "NPX-P08-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "four books",
        "form_observable": true
      },
      {
        "id": "NPX-P08-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "books",
        "form_observable": true
      },
      {
        "id": "NPX-P08-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the shelf",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P09",
    "scene_family_id": "NPX-FAMILY-P09",
    "partition": "practice",
    "title": "Same total, new arrangement",
    "setup": "Move five spoons from a row into a circle on the same tray, keeping all five visible.",
    "variation": "arrangement invariance",
    "questions": [
      {
        "id": "NPX-P09-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "5",
        "form_observable": true
      },
      {
        "id": "NPX-P09-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "five spoons",
        "form_observable": true
      },
      {
        "id": "NPX-P09-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "spoons",
        "form_observable": true
      },
      {
        "id": "NPX-P09-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the tray",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P10",
    "scene_family_id": "NPX-FAMILY-P10",
    "partition": "practice",
    "title": "Only the named surface",
    "setup": "Put two cups on the table and three on the shelf. Count only the table group.",
    "variation": "boundary selection",
    "questions": [
      {
        "id": "NPX-P10-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "2",
        "form_observable": true
      },
      {
        "id": "NPX-P10-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "two cups",
        "form_observable": true
      },
      {
        "id": "NPX-P10-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "cups",
        "form_observable": true
      },
      {
        "id": "NPX-P10-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the table",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P11",
    "scene_family_id": "NPX-FAMILY-P11",
    "partition": "practice",
    "title": "Return to one",
    "setup": "Put two baskets on the mat; move one to the table. Ask about the mat after the move.",
    "variation": "several becomes one",
    "questions": [
      {
        "id": "NPX-P11-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "1",
        "form_observable": true
      },
      {
        "id": "NPX-P11-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "one basket",
        "form_observable": true
      },
      {
        "id": "NPX-P11-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "basket",
        "form_observable": true
      },
      {
        "id": "NPX-P11-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the mat",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P12",
    "scene_family_id": "NPX-FAMILY-P12",
    "partition": "practice",
    "title": "Match without identical appearance",
    "setup": "Place three plates of different sizes on the table. Count each plate once.",
    "variation": "identity across size",
    "questions": [
      {
        "id": "NPX-P12-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "3",
        "form_observable": true
      },
      {
        "id": "NPX-P12-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "three plates",
        "form_observable": true
      },
      {
        "id": "NPX-P12-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "plates",
        "form_observable": true
      },
      {
        "id": "NPX-P12-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the table",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P13",
    "scene_family_id": "NPX-FAMILY-P13",
    "partition": "practice",
    "title": "One object has several parts",
    "setup": "Place one plant pot with several leaves on the shelf. Count pots, not leaves.",
    "variation": "whole versus parts",
    "questions": [
      {
        "id": "NPX-P13-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "1",
        "form_observable": true
      },
      {
        "id": "NPX-P13-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "one plant pot",
        "form_observable": true
      },
      {
        "id": "NPX-P13-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "plant pot",
        "form_observable": true
      },
      {
        "id": "NPX-P13-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the shelf",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P14",
    "scene_family_id": "NPX-FAMILY-P14",
    "partition": "practice",
    "title": "Join subgroups",
    "setup": "Put two books at one end of the mat and three at the other. The whole mat is the counting boundary.",
    "variation": "combine visible groups",
    "questions": [
      {
        "id": "NPX-P14-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "5",
        "form_observable": true
      },
      {
        "id": "NPX-P14-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "five books",
        "form_observable": true
      },
      {
        "id": "NPX-P14-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "books",
        "form_observable": true
      },
      {
        "id": "NPX-P14-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the mat",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P15",
    "scene_family_id": "NPX-FAMILY-P15",
    "partition": "practice",
    "title": "Count the kind among mixed objects",
    "setup": "Place three spoons, one cup and two plates on the table. Count spoons only.",
    "variation": "exclude distractor categories",
    "questions": [
      {
        "id": "NPX-P15-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "3",
        "form_observable": true
      },
      {
        "id": "NPX-P15-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "three spoons",
        "form_observable": true
      },
      {
        "id": "NPX-P15-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "spoons",
        "form_observable": true
      },
      {
        "id": "NPX-P15-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the table",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P16",
    "scene_family_id": "NPX-FAMILY-P16",
    "partition": "practice",
    "title": "One empty container still exists",
    "setup": "Put one empty basket on the shelf. Count baskets rather than their contents.",
    "variation": "container versus contents",
    "questions": [
      {
        "id": "NPX-P16-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "1",
        "form_observable": true
      },
      {
        "id": "NPX-P16-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "one basket",
        "form_observable": true
      },
      {
        "id": "NPX-P16-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "basket",
        "form_observable": true
      },
      {
        "id": "NPX-P16-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the shelf",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P17",
    "scene_family_id": "NPX-FAMILY-P17",
    "partition": "practice",
    "title": "Change after a count",
    "setup": "Count three balls on the tray together, then move one to the mat. Ask about the current tray.",
    "variation": "update rather than repeat",
    "questions": [
      {
        "id": "NPX-P17-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "2",
        "form_observable": true
      },
      {
        "id": "NPX-P17-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "two balls",
        "form_observable": true
      },
      {
        "id": "NPX-P17-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "balls",
        "form_observable": true
      },
      {
        "id": "NPX-P17-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the tray",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P18",
    "scene_family_id": "NPX-FAMILY-P18",
    "partition": "practice",
    "title": "A moved group keeps its count",
    "setup": "Move four plates from the table to the shelf, keeping each separately visible. Ask after the move.",
    "variation": "location change without quantity change",
    "questions": [
      {
        "id": "NPX-P18-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "4",
        "form_observable": true
      },
      {
        "id": "NPX-P18-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "four plates",
        "form_observable": true
      },
      {
        "id": "NPX-P18-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "plates",
        "form_observable": true
      },
      {
        "id": "NPX-P18-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the shelf",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P19",
    "scene_family_id": "NPX-FAMILY-P19",
    "partition": "practice",
    "title": "Distribute, then describe the whole",
    "setup": "Put five cups at five places on the table for a pretend gathering. Count the whole table.",
    "variation": "distribution and whole group",
    "questions": [
      {
        "id": "NPX-P19-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "5",
        "form_observable": true
      },
      {
        "id": "NPX-P19-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "five cups",
        "form_observable": true
      },
      {
        "id": "NPX-P19-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "cups",
        "form_observable": true
      },
      {
        "id": "NPX-P19-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the table",
        "form_observable": true
      }
    ]
  },
  {
    "id": "NPX-P20",
    "scene_family_id": "NPX-FAMILY-P20",
    "partition": "practice",
    "title": "Correct a mistaken report",
    "setup": "Place two books on the tray. A puppet says there is one. Invite the learner to check and describe what is actually there; disagreement is optional.",
    "variation": "evidence over partner suggestion",
    "questions": [
      {
        "id": "NPX-P20-count-en-r1",
        "kind": "count",
        "primary_target_id": "Q10",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "How many target objects are there in the agreed place?",
        "accepted_meaning": "2",
        "form_observable": true
      },
      {
        "id": "NPX-P20-phrase-en-r1",
        "kind": "phrase",
        "primary_target_id": "FG-NUMBER-02",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Tell me the number and name together.",
        "accepted_meaning": "two books",
        "form_observable": true
      },
      {
        "id": "NPX-P20-form-en-r1",
        "kind": "form",
        "primary_target_id": "FG-NUMBER-03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Name the target object or objects without saying the number.",
        "accepted_meaning": "books",
        "form_observable": true
      },
      {
        "id": "NPX-P20-where-en-r1",
        "kind": "where",
        "primary_target_id": "Q03",
        "linked_concept_ids": [
          "FG-NOUN-01"
        ],
        "prompt": "Where are the target objects?",
        "accepted_meaning": "on the tray",
        "form_observable": true
      }
    ]
  }
]