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": ""}
1643328 #YT    G. 6, Malpighiales -66.16667 cE7=$     (SPRUCE EX BENTH.) M??LL.ARG. em   N7<6n RONALD LIESNER  x CLOSE TO CERRO DE LA NEBLNA BASE CAMP WHICH IS ON RIO MAWARINUMA   1635 PV$     rã­o negro -@6   p40 HEVEA   5O/ Amazonas  w21P 0.83333  :! Venezuela euphorbiaceae      pauciflora kMz      58 HEVEA PAUCIFLORA 1984-03-02 k(kSz     0â°50'n, 66â°10'w 140 ` 
{"catalogNumber": "1643328", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Hevea pauciflora", "scientificNameAuthorship": "(Spruce ex Benth.) M??ll.Arg.", "genus": "Hevea", "subgenus": "", "specificEpithet": "pauciflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Ronald Liesner", "recordNumber": "16353", "verbatimEventDate": "1984-03-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Venezuela", "stateProvince": "Amazonas", "county": "R\u00c3\u00ado Negro", "municipality": "", "locality": "Close to Cerro de La Neblina Base Camp which is on Rio Mawarinuma", "decimalLatitude": "0.83333", "decimalLongitude": "-66.16667", "verbatimCoordinates": "0\u00c2\u00b050'N, 66\u00c2\u00b010'W", "minimumElevationInMeters": "140", "maximumElevationInMeters": ""}