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": ""}
 united states B4E=   U4w J (Gr/eene) T. Duncan  6Kb WASHTENAW    5  1345630   pE  ranunculales carl o. erlanson HL  1924-05-20 1       = -83.67539 42.19723 o<m=   57 SV       Ranunculus hispidus var. caricetorum Mcsd  caricetorum U~AmCv     U` thomas duncan
{"catalogNumber": "1345630", "order": "Ranunculales", "family": "", "scientificName": "Ranunculus hispidus var. caricetorum", "scientificNameAuthorship": "(Greene) T. Duncan", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "caricetorum", "identifiedBy": "Thomas Duncan", "recordedBy": "Carl O. Erlanson", "recordNumber": "57", "verbatimEventDate": "1924-05-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.19723", "decimalLongitude": "-83.67539", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}