{
  "resourceType": "StructureDefinition",
  "url": "https://example.org/fhir/StructureDefinition/FirstConstraintActivity",
  "name": "FirstConstraintActivity",
  "status": "draft",
  "description": "First Constraint Activity Profile",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Patient",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Patient",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Patient.identifier",
        "path": "Patient.identifier",
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "Patient.name",
        "path": "Patient.name",
        "min": 1
      },
      {
        "id": "Patient.name.family",
        "path": "Patient.name.family",
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "Patient.name.family.extension",
        "path": "Patient.name.family.extension",
        "min": 1
      },
      {
        "id": "Patient.name.family.extension:myExtension",
        "path": "Patient.name.family.extension",
        "sliceName": "myExtension",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://example.org/fhir/StructureDefinition/MyExtension"
            ]
          }
        ],
        "isModifier": false
      },
      {
        "id": "Patient.name.given",
        "path": "Patient.name.given",
        "min": 1,
        "max": "3",
        "mustSupport": true
      },
      {
        "id": "Patient.name.given.extension:exercise4Extension",
        "path": "Patient.name.given.extension",
        "sliceName": "exercise4Extension",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "https://example.org/fhir/StructureDefinition/Exercise4Extension"
            ]
          }
        ],
        "isModifier": false
      },
      {
        "id": "Patient.gender",
        "path": "Patient.gender",
        "mustSupport": true
      },
      {
        "id": "Patient.birthDate",
        "path": "Patient.birthDate",
        "min": 1,
        "mustSupport": true
      }
    ]
  }
}