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": ""}
   Tg^@a: Symphyotrichum Asterales V      ,D  Asteraceae WILLIAM S. BENNINGHOFF KxzT   8_ 1335705       [PW+ 10887    UNITED STATES ^[a  WASHTENAW `?3#   Rr<7] MICHIGAN  5 sanford hill, university of michigan botanical gardens, ann arbor.   0s)y (LINDL. EX DC.) G. L. NESOM  (X 42.300243 
{"catalogNumber": "1335705", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "(Lindl. ex DC.) G. L. Nesom", "genus": "Symphyotrichum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William S. Benninghoff", "recordNumber": "10887", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Sanford Hill, University of Michigan Botanical Gardens, Ann Arbor.", "decimalLatitude": "42.300243", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}