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": ""}
  1977-07-10 fz        n  castanea  : * CAREX CASTANEA       -N pales  ~IQuZ 4639  CONC. XX LOT B, TINY TWP., 6 1/2 MILES N OF PENETANG. W       ;RSv carex Canada ,]e  Simcoe  7PcT  
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Carex castanea", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "castanea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4639", "verbatimEventDate": "1977-07-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "Simcoe", "municipality": "", "locality": "Conc. XX Lot B, Tiny Twp., 6 1/2 miles N of Penetang.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}