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": ""}
      )c&W 1959-05-31 U8454 G@ A     8YU michigan         AETNA TWP., CA. 6 MI NE OF FALMOUTH. D5a6_5  -85.001166 eI-w   mE 2 Prunus virginiana  44.304745 yuh|8     =j s Prunus 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Prunus virginiana", "scientificNameAuthorship": "", "genus": "Prunus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "8454", "verbatimEventDate": "1959-05-31", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Aetna Twp., ca. 6 mi NE of Falmouth.", "decimalLatitude": "44.304745", "decimalLongitude": "-85.001166", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}