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": ""}
   vBbb~ 1524696  CONTACT UM HERBARIUM dDx   21660 f      (Hook. & Arn.) C.E. Anderson 1972-02-18 _5l@    CHRISTIANE ANDERSON  Ov        Malpighiaceae +:A       pF stigmaphyllon bonariense   K$L BONARIENSE 
{"catalogNumber": "1524696", "order": "", "family": "Malpighiaceae", "scientificName": "Stigmaphyllon bonariense", "scientificNameAuthorship": "(Hook. & Arn.) C.E. Anderson", "genus": "", "subgenus": "", "specificEpithet": "bonariense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Christiane Anderson", "recordedBy": "", "recordNumber": "21660", "verbatimEventDate": "1972-02-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}