{
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    "odrl": "http://www.w3.org/ns/odrl/2/",
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    "time": "http://www.w3.org/2006/time#",
    "vann": "http://purl.org/vocab/vann/",
    "vcard": "http://www.w3.org/2006/vcard/ns#",
    "voaf": "http://purl.org/vocommons/voaf#",
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        "@value": "2014-01-14T20:59:50"
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      },
      "gnss:interval": {
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        "@value": "30"
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      "gnss:issued": {
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        "@value": "2009-05-14T00:00:00"
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      "gnss:markerName": "LEON00ESP",
      "gnss:receiver": {
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      "gnss:firmware_version": "1.2-5",
      "gnss:igsModelCode": "TRIMBLE NETRS"
    },
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      "@type": "PeriodOfTime",
      "endDate": {
        "@type": "xsd:dateTime",
        "@value": "2009-05-14T23:59:30"
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      "startDate": {
        "@type": "xsd:dateTime",
        "@value": "2009-05-14T00:00:00"
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}