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": ""}
  $= bruce       joseph w. johnson   retrorsa !        w:c(U CAREX  yxb near schmidt lake in greenock swamp, green0ck tp.  ml cyperaceae  44.#166667 g      s.n.   AN    uY 44â° 10' n 81â° 20' w CANADA  n     rM 1987-07-04
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "retrorsa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Joseph W. Johnson", "recordNumber": "s.n.", "verbatimEventDate": "1987-07-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "Bruce", "municipality": "", "locality": "Near Schmidt Lake in Greenock Swamp, Greenock Tp.", "decimalLatitude": "44.166667", "decimalLongitude": "", "verbatimCoordinates": "44\u00c2\u00b0 10' N 81\u00c2\u00b0 20' W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}