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": ""}
oliver a. farwell O,7M  Campanulaceae Y6   l 7460 Triodanis perfoliata J7:  FLAT ROCK R9   ,h  ASTERALES [cited, am.midl.nat.10:43]      (L.) Nieuwl. ~8M        ZL  42.10167 1249263 ^ &$1     triodanis * VR     0h -83.27306  E(T 1925-07-01  f6Q united states C :f WAYNE   fT MICHIGAN
{"catalogNumber": "1249263", "order": "Asterales", "family": "Campanulaceae", "scientificName": "Triodanis perfoliata", "scientificNameAuthorship": "(L.) Nieuwl.", "genus": "Triodanis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Oliver A. Farwell", "recordNumber": "7460", "verbatimEventDate": "1925-07-01", "habitat": "", "occurrenceRemarks": "[Cited, Am.Midl.Nat.10:43]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Wayne", "municipality": "", "locality": "Flat Rock", "decimalLatitude": "42.10167", "decimalLongitude": "-83.27306", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}