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": ""}
    _i3v4 Christopher Davidson dtto. iquitos. pena negra, on 0ad from iquitos past quisto cocha ,rS  Mabea speciosa i      1976-12-06 PgD%*   L;  malpighiales      6t loreto   530 sei g  rUpland humid forest over sand, with some disturbed patches along the trail Z    1642554 M_a?   MAYNAS    
{"catalogNumber": "1642554", "order": "Malpighiales", "family": "", "scientificName": "Mabea speciosa", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Christopher Davidson", "recordNumber": "5300", "verbatimEventDate": "1976-12-06", "habitat": "Upland humid forest over sand, with some disturbed patches along the trail", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Loreto", "county": "Maynas", "municipality": "", "locality": "Dtto. Iquitos. Pena Negra, on road from Iquitos past Quisto Cocha", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}