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": ""}
 3  2 1897-06-02  CH UNITED STATES BILTMORE _vS]*    /   1504527      grpm 41139 WN$  THICKETS M3   kf.3] OXALIDACEAE      wx Small not evident +8(F[   oxalidales W  OXALIS /  GRANDIS =U     
{"catalogNumber": "1504527", "order": "Oxalidales", "family": "Oxalidaceae", "scientificName": "", "scientificNameAuthorship": "Small", "genus": "Oxalis", "subgenus": "", "specificEpithet": "grandis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "", "verbatimEventDate": "1897-06-02", "habitat": "Thickets", "occurrenceRemarks": "GRPM 41139", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Biltmore", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}