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": ""}
    P Euphorbiaceae r. riina Z   UG[ Bolivia 34 O  pilulifer 2 /kh   MALPIGHIALES ~6M5_    Tb0.0 1990-10-11      mT  4 O. W. STUTTER    @ croton   S u4 RUSBY  1500 )i=^  ichilo F  1544485 4w4  
{"catalogNumber": "1544485", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "", "scientificNameAuthorship": "Rusby", "genus": "Croton", "subgenus": "", "specificEpithet": "pilulifer", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R. Riina", "recordedBy": "O. W. Stutter", "recordNumber": "34", "verbatimEventDate": "1990-10-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Bolivia", "stateProvince": "", "county": "Ichilo", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1500", "maximumElevationInMeters": ""}