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": ""}
  wSzS S.N. United States          O@ fragilis    ia% Opuntia  x OPUNTIA FRAGILIS   ?T  9 (Nutt.) Haw.  1903-08-15  J,       Sii j. w. blankinship  I~ caryophyllales  1644014 ?vQNO  cactaceae A_ig  
{"catalogNumber": "1644014", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Opuntia fragilis", "scientificNameAuthorship": "(Nutt.) Haw.", "genus": "Opuntia", "subgenus": "", "specificEpithet": "fragilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. W. Blankinship", "recordNumber": "s.n.", "verbatimEventDate": "1903-08-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}