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": ""}
  oxandra espintana ,#_1    ANNONACEAE 5q  C   -69 s   t_c oxnda   BRAZIL 1rw  1510452 F3K    3r2E^ BORIS A. KRUKOFF   SC- near mouth of rio macauhan (tributary of rio yaco.    $ 5706          
{"catalogNumber": "1510452", "order": "", "family": "Annonaceae", "scientificName": "Oxandra espintana", "scientificNameAuthorship": "", "genus": "Oxandra", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Boris A. Krukoff", "recordNumber": "5706", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Brazil", "stateProvince": "", "county": "", "municipality": "", "locality": "Near mouth of Rio Macauhan (tributary of Rio Yaco).", "decimalLatitude": "", "decimalLongitude": "-69", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}