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": ""}
guyana R   1d 1994-07-05    Malpighiaceae g   nz1G a. juss. 5455 n     _ Tetrapteys PAKAAIMA MOUNTAINS; UPPER IRENG RIVER .5v^  4Â°48'N, 60Â°02'W ZH,is   _B.  T.W. HEKEL    no data  v   N! A  1546186   g styloptera  :M POTARO-SIPARUNI tetQrapterys styloptera Vdi     
{"catalogNumber": "1546186", "order": "", "family": "Malpighiaceae", "scientificName": "Tetrapterys styloptera", "scientificNameAuthorship": "A. Juss.", "genus": "Tetrapterys", "subgenus": "", "specificEpithet": "styloptera", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "T.W. Henkel", "recordNumber": "5455", "verbatimEventDate": "1994-07-05", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Guyana", "stateProvince": "Potaro-Siparuni", "county": "no data", "municipality": "", "locality": "Pakaraima Mountains; Upper Ireng River", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "4\u00c2\u00b048'N, 60\u00c2\u00b002'W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}