{
    "@context": {
        "xsd": "http://www.w3.org/2001/XMLSchema#",
        "obs": "https://secorolab.github.io/metamodels/observation#",
        "ros": "https://index.ros.org/p/",

        "ObservationProvider": { "@id": "obs:ObservationProvider" },


        "ObservationPolicy": { "@id": "obs:ObservationPolicy" },
        "provider": {"@id": "obs:has-provider", "@type": "@id"},

        "ROSTopic": { "@id": "ros:ROSTopic" },
        "topic-name": { "@id": "ros:topic-name", "@type": "xsd:string" },
        "message-type": { "@id": "ros:message-type", "@type": "xsd:string" },

        "HasFrameId": { "@id": "ros:HasFrameId" },
        "frame-id": { "@id": "ros:frame-id", "@type": "xsd:string" }
    }
}