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": ""}
      bC# -83.26466 oliver a. farwell ug   Oakland 9&^     k+Q?h OXFORD       d SYMPHYOTRICHUM       / Michigan   symphyotrichum cordifolium J  1917-1O-11 CHU  united states  /$  
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Symphyotrichum cordifolium", "scientificNameAuthorship": "", "genus": "Symphyotrichum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Oliver A. Farwell", "recordNumber": "", "verbatimEventDate": "1917-10-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Oakland", "municipality": "", "locality": "Oxford", "decimalLatitude": "", "decimalLongitude": "-83.26466", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}