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": ""}
   howard a. crum   _$> (PERS.) BÃ¶RNER     H_+15 stuckenia FILIFORMIS 5*i   y Douglas Lake, off Grapevine Point,  vC  michigan [sample taken for pollen and spore collection 2/22/57 j. martinson] ?@   &u United States   a ALISMATALES   t CHEBOYGAN 45.5688 0 d  potamogetonaceae Qq   ( y[ IN THREE FEET OF WATER  zLP]g stuckenia filiformis  -84.67657 L    2Hfws 1947-07-01   1188410 q J 
{"catalogNumber": "1188410", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Stuckenia filiformis", "scientificNameAuthorship": "(Pers.) B\u00c3\u00b6rner", "genus": "Stuckenia", "subgenus": "", "specificEpithet": "filiformis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Howard A. Crum", "recordNumber": "", "verbatimEventDate": "1947-07-01", "habitat": "in three feet of water", "occurrenceRemarks": "[Sample taken for pollen and spore collection 2/22/57 J. Martinson]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Cheboygan", "municipality": "", "locality": "Douglas Lake, off Grapevine Point,", "decimalLatitude": "45.56848", "decimalLongitude": "-84.67657", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}