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 2  UNITED STATES M  virginiana i   La:: Van Buren  1 Ro5aceae   rosales neId   o++ frequent tall shrub, edge of low deciduous woods. 42.292007 ln   1468552 yHl    :: l.   Prunus virginiana qyz^   [dE  edward g. voss 1960-05-12 `&WT  9250 tq     e Bangor Twp., ca. 2 mi SW of Bangor. 
{"catalogNumber": "1468552", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus virginiana", "scientificNameAuthorship": "L.", "genus": "Prunus", "subgenus": "", "specificEpithet": "virginiana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "9250", "verbatimEventDate": "1960-05-12", "habitat": "Frequent tall shrub, edge of low deciduous woods.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Van Buren", "municipality": "", "locality": "Bangor Twp., ca. 2 mi SW of Bangor.", "decimalLatitude": "42.292007", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}