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": ""}
Brewster c    d/ 1644116  A TEXAS  M1ha  Opuntia  Caryophyllales @OXN    fe/2Z OPUNTIA MACROCENTRA  6 % united states LYMAN BENSON DR@[    MACROCENTRA ew   4S 935   + MARGERY S. ANTHONY   1948-08-03 ^P58K     RC engelm.   @? cactaceae  O FL  west of santiago peak, along cbalk draw road
{"catalogNumber": "1644116", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Opuntia macrocentra", "scientificNameAuthorship": "Engelm.", "genus": "Opuntia", "subgenus": "", "specificEpithet": "macrocentra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Lyman Benson", "recordedBy": "Margery S. Anthony", "recordNumber": "935", "verbatimEventDate": "1948-08-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Brewster", "municipality": "", "locality": "West of Santiago Peak, along Chalk Draw Road", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}