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": ""}
NEAR WE$STERN END B%    opuntia polyacantha m.ia   E Caryophyllales  _U 6071  &p polyacantha 144446 s    Haw.S 0   1948-06-23 <(s   M%x South side of Mesa de Maya   :wAD opuntia   C. M. Rogers ~NbDN   united states <G   S/) Las Animas  9xV CACTACEAE  Col0rado _?e    
{"catalogNumber": "1644446", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Opuntia polyacantha", "scientificNameAuthorship": "Haw.", "genus": "Opuntia", "subgenus": "", "specificEpithet": "polyacantha", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. M. Rogers", "recordNumber": "6071", "verbatimEventDate": "1948-06-23", "habitat": "near western end", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "Las Animas", "municipality": "", "locality": "South side of Mesa de Maya", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}