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": ""}
 F u STENOSEPALUS SAN MARTIN l$d   [= PERU  F 2004-05-18   re]> MALPIGHIALES    R 1557488    MÃ¼LL. ARG. -Px+     o R. Riina, J. Campos    -76.335  S&        kxc CROTON  o R. Riina
{"catalogNumber": "1557488", "order": "Malpighiales", "family": "", "scientificName": "", "scientificNameAuthorship": "M\u00c3\u00bcll. Arg.", "genus": "Croton", "subgenus": "", "specificEpithet": "stenosepalus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R. Riina", "recordedBy": "R. Riina, J. Campos", "recordNumber": "", "verbatimEventDate": "2004-05-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Peru", "stateProvince": "", "county": "San Martin", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-76.335", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}