{
  "@context": {
    "@version": 1.1,
    "schema": "https://schema.org/",
    "ssn": "http://www.w3.org/ns/ssn/",
    "sosa": "http://www.w3.org/ns/sosa/",
    "tw": "https://docs.ptc.com/vocab/thingworx#",
    "xsd": "http://www.w3.org/2001/XMLSchema#",

    "Thing": {
      "@id": "ssn:System",
      "@type": "@id"
    },
    "name": {
      "@id": "schema:name"
    },
    "description": {
      "@id": "schema:description"
    },
    "thingTemplate": {
      "@id": "tw:thingTemplate"
    },
    "thingShape": {
      "@id": "tw:thingShape"
    },
    "identifier": {
      "@id": "schema:identifier"
    },
    "isEnabled": {
      "@id": "schema:actionStatus",
      "@type": "xsd:boolean"
    },
    "tags": {
      "@id": "schema:keywords"
    },
    "projectName": {
      "@id": "schema:isPartOf"
    },
    "lastModifiedDate": {
      "@id": "schema:dateModified",
      "@type": "xsd:long"
    },

    "PropertyValue": {
      "@id": "sosa:Observation",
      "@type": "@id"
    },
    "thingName": {
      "@id": "sosa:featureOfInterest"
    },
    "propertyName": {
      "@id": "sosa:observedProperty"
    },
    "value": {
      "@id": "sosa:hasSimpleResult"
    },
    "timestamp": {
      "@id": "sosa:resultTime",
      "@type": "xsd:long"
    },
    "quality": {
      "@id": "tw:dataQuality"
    },

    "EventFired": {
      "@id": "schema:Event",
      "@type": "@id"
    },
    "eventName": {
      "@id": "schema:name"
    },
    "eventData": {
      "@id": "schema:additionalProperty"
    },

    "Alert": {
      "@id": "schema:AlarmAction",
      "@type": "@id"
    },
    "alertName": {
      "@id": "schema:name"
    },
    "alertType": {
      "@id": "tw:alertType"
    },
    "isAcknowledged": {
      "@id": "tw:isAcknowledged",
      "@type": "xsd:boolean"
    },
    "isCleared": {
      "@id": "tw:isCleared",
      "@type": "xsd:boolean"
    },

    "DataShape": {
      "@id": "schema:PropertyValue",
      "@type": "@id"
    },
    "fieldDefinitions": {
      "@id": "tw:fieldDefinitions"
    },
    "baseType": {
      "@id": "tw:baseType"
    }
  }
}