{
  "@context": {
    "@version": 1.1,
    "chat": "https://apievangelist.com/schemas/chat/",
    "schema": "https://schema.org/",
    "xsd": "http://www.w3.org/2001/XMLSchema#",
    "dcterms": "http://purl.org/dc/terms/",

    "Conversation": {
      "@id": "chat:Conversation",
      "@context": {
        "id": "chat:id",
        "title": "schema:name",
        "createdAt": {
          "@id": "dcterms:created",
          "@type": "xsd:dateTime"
        },
        "updatedAt": {
          "@id": "dcterms:modified",
          "@type": "xsd:dateTime"
        },
        "participantIds": {
          "@id": "chat:participantIds",
          "@container": "@list"
        }
      }
    },

    "Message": {
      "@id": "schema:Message",
      "@context": {
        "id": "chat:id",
        "conversationId": "chat:conversationId",
        "senderId": {
          "@id": "schema:sender",
          "@type": "@id"
        },
        "content": "schema:text",
        "contentType": "chat:contentType",
        "sentAt": {
          "@id": "schema:dateSent",
          "@type": "xsd:dateTime"
        },
        "editedAt": {
          "@id": "chat:editedAt",
          "@type": "xsd:dateTime"
        }
      }
    },

    "Participant": {
      "@id": "chat:Participant",
      "@context": {
        "userId": {
          "@id": "schema:identifier",
          "@type": "@id"
        },
        "role": "chat:role",
        "joinedAt": {
          "@id": "chat:joinedAt",
          "@type": "xsd:dateTime"
        }
      }
    }
  }
}