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": ""}
 Ca united states  gIURw Chippewa SACCHARUM T [#:             1984-07-10   moist acer-fagus-tilia woods xTnC   .A 46.020224  . ACER   B ACER SACCHARUM  BU= MICHIGAN DRUMMOND ISLAND  ~+  marshall 3D  frequent -     
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Acer saccharum", "scientificNameAuthorship": "Marshall", "genus": "Acer", "subgenus": "", "specificEpithet": "saccharum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1984-07-10", "habitat": "moist Acer-Fagus-Tilia woods", "occurrenceRemarks": "frequent", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Chippewa", "municipality": "", "locality": "Drummond Island", "decimalLatitude": "46.020224", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}