{
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        "http://www.opengis.net/spec/json-fg-1/0.3/conf/core"         ,
        "http://www.opengis.net/spec/json-fg-1/0.3/conf/circular-arcs"
    ],
    "coordRefSys": "http://www.opengis.net/def/crs/OGC/0/CRS84h",
    "type": "CircularString",
    "coordinates": [
        [2.5, 49.5, 10.5],
        [3.5, 50.5, 11.5],
        [4.5, 49.5, 12.5]
    ]
}
