{
  "constraints": [
    "assign_timeslot",
    "assign_room",
    "teacher_availability",
    "group_availability",
    "room_kind",
    "room_capacity",
    "no_group_conflict",
    "no_room_conflict",
    "no_teacher_conflict",
    "late_lesson",
    "repeated_subject_day"
  ],
  "entities": [
    {
      "label": "Lesson",
      "name": "lesson",
      "plural": "lessons"
    }
  ],
  "facts": [
    {
      "label": "Timeslot",
      "name": "timeslot",
      "plural": "timeslots"
    },
    {
      "label": "Teacher",
      "name": "teacher",
      "plural": "teachers"
    },
    {
      "label": "Group",
      "name": "group",
      "plural": "groups"
    },
    {
      "label": "Room",
      "name": "room",
      "plural": "rooms"
    }
  ],
  "views": [
    {
      "allowsUnassigned": false,
      "entity": "lesson",
      "entityPlural": "lessons",
      "id": "lesson-timeslot_idx",
      "kind": "scalar",
      "label": "Lesson · timeslot_idx",
      "sourcePlural": "timeslots",
      "variableField": "timeslot_idx"
    },
    {
      "allowsUnassigned": false,
      "entity": "lesson",
      "entityPlural": "lessons",
      "id": "lesson-room_idx",
      "kind": "scalar",
      "label": "Lesson · room_idx",
      "sourcePlural": "rooms",
      "variableField": "room_idx"
    }
  ]
}