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": ""}
 x| 1947-04-07    united states pb    sEFd phaeaan7ha e. of mariscal mt. big bend nat. park QW0[   jP  1644387  %  ~ on pediment TEXAS Zv   opuntia phaeacantha o     r 22 Opuntia 8%&    u 4 CACTACEAE 610 i+^)_   BREWSTER U@a   wO engelm.  t  Caryophyllales      margery s. anthony 
{"catalogNumber": "1644387", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Opuntia phaeacantha", "scientificNameAuthorship": "Engelm.", "genus": "Opuntia", "subgenus": "", "specificEpithet": "phaeacantha", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Margery S. Anthony", "recordNumber": "22", "verbatimEventDate": "1947-04-07", "habitat": "on pediment", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Brewster", "municipality": "", "locality": "e. of Mariscal Mt. Big Bend Nat. Park", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "610", "maximumElevationInMeters": ""}