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": ""}
  16635 +$r7      u`8#P DRUMMOND ISLAND: near SE end of GrandMarais Lake, sec. 28, T434N, R6E.         chippewa  fagales  4s     United States kKu  46 CFO     betulaceae  s )     ALNUS  ( 6a 
{"catalogNumber": "", "order": "Fagales", "family": "Betulaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Alnus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "16635", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Chippewa", "municipality": "", "locality": "DRUMMOND ISLAND: near SE end of Grand Marais Lake, sec. 28, T43N, R6E.", "decimalLatitude": "46", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}