{
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    "owl": "http://www.w3.org/2002/07/owl#",
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    "spdx": "http://spdx.org/rdf/terms#",
    "status": "https://publications.europa.eu/resource/authority/distribution-status/",
    "time": "http://www.w3.org/2006/time#",
    "vann": "http://purl.org/vocab/vann/",
    "vcard": "http://www.w3.org/2006/vcard/ns#",
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      },
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        "@value": "2017-08-01T09:10:38"
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      "gnss:igsModelCode": "TRM57971.00     TZGD",
      "gnss:marker-arpEastEcc": {
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      "dct:checksumAlgorithm": "MD5",
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      "@type": "PeriodOfTime",
      "endDate": {
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      "gnss:firmware_version": "5.22",
      "gnss:igsModelCode": "TRIMBLE NETR9"
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}