[
    {
        "@context": "http://context.json-ld",
        "id": "urn:ngsi-ld:WeatherStation:ws4",
        "type": "WeatherStation",
        "pressure": {
            "type": "Property",
            "value": "52",
            "observedAt": "2016-05-30T16:25:22.304Z"
        }
    },
    {
        "@context": "http://context.json-ld",
        "id": "urn:ngsi-ld:Higrometer:Higro2000",
        "type": "Higrometer",
        "humidity": {
            "type": "Property",
            "value": "12",
            "observedAt": "2023-03-21T18:30:30.948Z"
        }
    }
]