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": ""}
  =  (L 1948-09-18     c #A CACTACEAE   ?a<N= On bank of draw   Opuntia macrocentra ?!Tz  1240 )     144095 gb3   opuntia r     Margery S. Anthony 4     ox BREWSTER  QFl%M MACROCENTRA 
{"catalogNumber": "1644095", "order": "", "family": "Cactaceae", "scientificName": "Opuntia macrocentra", "scientificNameAuthorship": "", "genus": "Opuntia", "subgenus": "", "specificEpithet": "macrocentra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Margery S. Anthony", "recordNumber": "1240", "verbatimEventDate": "1948-09-18", "habitat": "On bank of draw", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Brewster", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}