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": ""}
    Rumex thyrsiflorus  Sr   45.9082 :NK   16681 4 HK        Cer  Locally common and conspicuous along old Soo Line railroad grade (now a drivable trail) through wetland,   / Bn mackinac     Qq Michigan United States Z  SW1/4 sec. 35, T41N, R3W, ca. 3.5 mi. NW of St. Ignace. VL?k  1999-07-10 81d    
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Rumex thyrsiflorus", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "16681", "verbatimEventDate": "1999-07-10", "habitat": "Locally common and conspicuous along old Soo Line railroad grade (now a drivable trail) through wetland,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mackinac", "municipality": "", "locality": "SW1/4 sec. 35, T41N, R3W, ca. 3.5 mi. NW of St. Ignace.", "decimalLatitude": "45.9082", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}