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": ""}
 fb  OAXACA    Rich4rd S. Cowan    BQ)+ KUNTH CROTON xS    t*+2T Flat grazed areas, vegetation mainly cacti and thorny leguminous trees and shrubs el mezquite; tehuantepec; 3-4 km w of ixtaltepec 0  Robert Merrill Kin & C. Feddema 6sWgp   m[Bn  Euphorbiaceae  c>W -94.9412  5 cortesianus   i 16.689 1159607 g0   1528 q@1>  CROTON CORTEIANUS 4 G   mexico +Hc       y 1959-07-10 
{"catalogNumber": "1159607", "order": "", "family": "Euphorbiaceae", "scientificName": "Croton cortesianus", "scientificNameAuthorship": "Kunth", "genus": "Croton", "subgenus": "", "specificEpithet": "cortesianus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Richard S. Cowan", "recordedBy": "Robert Merrill King & C. Feddema", "recordNumber": "1528", "verbatimEventDate": "1959-07-10", "habitat": "Flat grazed areas, vegetation mainly cacti and thorny leguminous trees and shrubs", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Oaxaca", "county": "", "municipality": "", "locality": "El Mezquite; Tehuantepec; 3-4 km W of Ixtaltepec", "decimalLatitude": "16.689", "decimalLongitude": "-94.9412", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}