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": ""}
 -G@T 1917-07-02 heuchera americana var. hirsfuticaulis @uxw       M HIRSUTICAULIS 1464953 m  SAXIFRAGACEAE Bm)  HEUrCHERA #    s.n. l7   VAR.  KH    42.274748 -c    k Forestry Farm, Ann Arbor.  -83.806645 xw :    < MICHIGAN  V (W=heelock) Rosend., Butters & Lakela united states Am; r    americana m  SAXIFRAGALES W[ 
{"catalogNumber": "1464953", "order": "Saxifragales", "family": "Saxifragaceae", "scientificName": "Heuchera americana var. hirsuticaulis", "scientificNameAuthorship": "(Wheelock) Rosend., Butters & Lakela", "genus": "Heuchera", "subgenus": "", "specificEpithet": "americana", "verbatimTaxonRank": "var.", "infraspecificEpithet": "hirsuticaulis", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1917-07-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Forestry Farm, Ann Arbor.", "decimalLatitude": "42.274748", "decimalLongitude": "-83.806645", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}