{ 
    "@context": {   
        "type": "@type", 
        "id": "@id", 
        "fiware": "https://uri.fiware.org/ns/data-models#", 
        "ngsi-ld": "https://uri.etsi.org/ngsi-ld/", 
        "name": "https://schema.org/streetAddress",
        "StrSchl" : "https://wiki.openstreetmap.org/wiki/DE:Stra%C3%9Fenschl%C3%BCssel"
} ,
        "@graph" : [
            { 
                "@id": "https://en.wikipedia.org/wiki/Postal_code",
                "@type": "https://uri.etsi.org/ngsi-ld/Relationship", 
                "rdfs:comment": [ 
                {
                     "@language": "en", 
                     "@value": "The Postal Code where the street is" 
                    } 
                ], "rdfs:label": [
                     { "@language": "en", 
                     "@value": "referenceToPostalCode" 
                     } 
                ]
             }
        ]

}