{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "schema:TrainTrip",
  "title": "TrainTrip",
  "description": "A trip on a commercial train line.",
  "type": "object",
  "allOf": [
    {
      "description": "A trip or journey. An itinerary of visits to one or more places.",
      "$ref": "schema:Trip"
    }
  ],
  "properties": {
    "arrivalPlatform": {
      "description": "The platform where the train arrives.",
      "type": "string"
    },
    "arrivalStation": {
      "description": "The station where the train trip ends.",
      "$ref": "schema:TrainStation"
    },
    "departurePlatform": {
      "description": "The platform from which the train departs.",
      "type": "string"
    },
    "departureStation": {
      "description": "The station from which the train departs.",
      "$ref": "schema:TrainStation"
    },
    "trainName": {
      "description": "The name of the train (e.g. The Orient Express).",
      "type": "string"
    },
    "trainNumber": {
      "description": "The unique identifier for the train.",
      "type": "string"
    }
  }
}