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    "locn": "http://www.w3.org/ns/locn#",
    "odrl": "http://www.w3.org/ns/odrl/2/",
    "owl": "http://www.w3.org/2002/07/owl#",
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    "time": "http://www.w3.org/2006/time#",
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    "vcard": "http://www.w3.org/2006/vcard/ns#",
    "voaf": "http://purl.org/vocommons/voaf#",
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      "gnss:igsModelCode": "TRIMBLE NETR9"
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}