{
  "version": 1,
  "name": "Unary, binary and ternary fact types",
  "objectTypes": [
    {
      "id": "person",
      "name": "Person",
      "kind": "entity",
      "refMode": "nr"
    },
    {
      "id": "company",
      "name": "Company",
      "kind": "entity",
      "refMode": "name"
    },
    {
      "id": "room",
      "name": "Room",
      "kind": "entity",
      "refMode": "nr"
    },
    {
      "id": "day",
      "name": "Day",
      "kind": "entity",
      "refMode": "code"
    },
    {
      "id": "emp",
      "name": "Employee",
      "kind": "entity",
      "refMode": "nr"
    }
  ],
  "factTypes": [
    {
      "id": "smokes",
      "roles": [
        {
          "id": "smokes.r0",
          "objectTypeId": "person"
        }
      ],
      "readings": [
        {
          "id": "smokes.rd",
          "roleOrder": [
            "smokes.r0"
          ],
          "text": "{0} smokes",
          "isPrimary": true
        }
      ]
    },
    {
      "id": "works",
      "roles": [
        {
          "id": "works.r0",
          "objectTypeId": "emp"
        },
        {
          "id": "works.r1",
          "objectTypeId": "company"
        }
      ],
      "readings": [
        {
          "id": "works.rd",
          "roleOrder": [
            "works.r0",
            "works.r1"
          ],
          "text": "{0} works for {1}",
          "isPrimary": true
        }
      ]
    },
    {
      "id": "booked",
      "roles": [
        {
          "id": "booked.r0",
          "objectTypeId": "emp"
        },
        {
          "id": "booked.r1",
          "objectTypeId": "room"
        },
        {
          "id": "booked.r2",
          "objectTypeId": "day"
        }
      ],
      "readings": [
        {
          "id": "booked.rd",
          "roleOrder": [
            "booked.r0",
            "booked.r1",
            "booked.r2"
          ],
          "text": "{0} booked {1} on {2}",
          "isPrimary": true
        }
      ]
    }
  ],
  "subtypeRelations": [],
  "constraints": [
    {
      "id": "uc0",
      "kind": "uniqueness",
      "roles": [
        "smokes.r0"
      ]
    },
    {
      "id": "uc1",
      "kind": "uniqueness",
      "roles": [
        "works.r0"
      ]
    },
    {
      "id": "uc2",
      "kind": "uniqueness",
      "roles": [
        "booked.r1",
        "booked.r2"
      ]
    }
  ],
  "diagram": {
    "shapes": {
      "person": {
        "x": 40,
        "y": 20
      },
      "emp": {
        "x": 40,
        "y": 130
      },
      "company": {
        "x": 330,
        "y": 110
      },
      "room": {
        "x": 330,
        "y": 210
      },
      "day": {
        "x": 330,
        "y": 280
      },
      "smokes": {
        "x": 200,
        "y": 28,
        "orientation": "horizontal"
      },
      "works": {
        "x": 210,
        "y": 118,
        "orientation": "horizontal"
      },
      "booked": {
        "x": 200,
        "y": 220,
        "orientation": "horizontal"
      }
    }
  }
}