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": ""}
   Swampy ground X   vGV<> SUBSP.  ov[ HELIANTHUS    8 n[ew] r[ichmond] rr right of way.    1913-08-19 ??Mp     m$l Asterales 42.6486 ilu |  helanthus giganteus subsp. giganteus tw   DTP giganteus  x~X CALVIN H. KAUFFMAN michigan  btA   -86.10546 r   r 1254068  ALL8EGAN 63^Fj  UNITED STATES 6CB 
{"catalogNumber": "1254068", "order": "Asterales", "family": "", "scientificName": "Helianthus giganteus subsp. giganteus", "scientificNameAuthorship": "", "genus": "Helianthus", "subgenus": "", "specificEpithet": "giganteus", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Calvin H. Kauffman", "recordNumber": "", "verbatimEventDate": "1913-08-19", "habitat": "Swampy ground", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Allegan", "municipality": "", "locality": "N[ew] R[ichmond] RR right of way.", "decimalLatitude": "42.6486", "decimalLongitude": "-86.10546", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}