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": ""}
   SALINE-MILAN RD., AT SOUTH EDG3 OF SALINE. -fC3   W 1468458   !| 1986-04-19   *r O WASHTENAW   "appearing to be spontaneous" yb/  michigan V    e^ prunus   lxYV 1468 ROSALES -  UNITED STATES  bY8c     prunus tomentosa )9bs    H*M<X Robert W. Smith  tomentosa tC  ROADSIDE BANK.  N-o(   E THUNB. rosaceae w 
{"catalogNumber": "1468458", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus tomentosa", "scientificNameAuthorship": "Thunb.", "genus": "Prunus", "subgenus": "", "specificEpithet": "tomentosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert W. Smith", "recordNumber": "1468", "verbatimEventDate": "1986-04-19", "habitat": "Roadside bank.", "occurrenceRemarks": "\"Appearing to be spontaneous\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Saline-Milan Rd., at south edge of Saline.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}