Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
   x F+ MACKINAC    Cyperaceae `GvK9  -84.747713 p/  587 KG AI    CAREX VIRIDULA Y     gY<e michigan united states B   wK 1949-06-16  oa Carex EDWARD G. VOSS iD     : 45.83549  Wtxal GREE ISLAND, OFF PT. LA BARBE.    VIRIDULA % 
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "Carex viridula", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "viridula", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "587", "verbatimEventDate": "1949-06-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mackinac", "municipality": "", "locality": "Green Island, off Pt. La Barbe.", "decimalLatitude": "45.83549", "decimalLongitude": "-84.747713", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}