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": ""}
    1/2 mi. s.e. of Crown Mt., Big Bend National Park <    WITH DASYLIRION-AGAVE, ON GENTLE SLOPE 51 ql     UNITED STATES 8 -C  CYLINDROhPUNTIA IMBRICATA R?d  CARY0PHYLLALES fn%  266 PI1f  imbricata 0/=   r Kd cactaceae   @Vz4~ Brewster Texas  ?      CYLINDROPUNTIA  q|R  1644178 ]~   @ (haw.) f.m. knuth
{"catalogNumber": "1644178", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Cylindropuntia imbricata", "scientificNameAuthorship": "(Haw.) F.M. Knuth", "genus": "Cylindropuntia", "subgenus": "", "specificEpithet": "imbricata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "266", "verbatimEventDate": "", "habitat": "With Dasylirion-Agave, on gentle slope", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Brewster", "municipality": "", "locality": "1/2 mi. s.e. of Crown Mt., Big Bend National Park", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}