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": ""}
Prunus ?UN   1468494 E5P/p    ^ Ci R.R.Dreisbach     l l -84.17926    9 saginaw    a)Q Rosaeae  %$-C michigan  H2 1929-0#5-24     43.56598  Uu< DAMP THICKET.  , UNITED STATES    F 6357    PRUNUS VIRGINIANA ^ )<H 
{"catalogNumber": "1468494", "order": "", "family": "Rosaceae", "scientificName": "Prunus virginiana", "scientificNameAuthorship": "", "genus": "Prunus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R.R. Dreisbach", "recordNumber": "6357", "verbatimEventDate": "1929-05-24", "habitat": "Damp thicket.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Saginaw", "municipality": "", "locality": "", "decimalLatitude": "43.56598", "decimalLongitude": "-84.17926", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}