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": ""}
  W; H. C. Medford        fernaldii VR*L  1958-06-19 =||i  6691 OY(b  VAR. =  CYPERACEAE fM      czF Sanilac Twp., ca. 4.5 mi. W of Port Sanilac intumescens F`+v      >#UD 43.430795 michigan L    Fr Sanilac  [zJpx CAREX
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "intumescens", "verbatimTaxonRank": "var.", "infraspecificEpithet": "fernaldii", "identifiedBy": "H. C. Medford", "recordedBy": "", "recordNumber": "6691", "verbatimEventDate": "1958-06-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Sanilac", "municipality": "", "locality": "Sanilac Twp., ca. 4.5 mi. W of Port Sanilac", "decimalLatitude": "43.430795", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}