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": ""}
579 ?z-[   1644101  *</    Opuntia macrocentra  I   on low north-sloping limestone cuestas  i  CARYOPHYLLALES  dH     : MACROCENTRA   SN margery s. anthony   0L  OPUNTIA 271 M  Brewster Oc,   $ 194]8-04Y-27 cactaceae 6H&(?   _$!s UN=IT0ED STATES engelm. %~kq    I U3  texas       1 mi ne of solis ranch house, big bend nat. park 
{"catalogNumber": "1644101", "order": "Caryophyllales", "family": "Cactaceae", "scientificName": "Opuntia macrocentra", "scientificNameAuthorship": "Engelm.", "genus": "Opuntia", "subgenus": "", "specificEpithet": "macrocentra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Margery S. Anthony", "recordNumber": "271", "verbatimEventDate": "1948-04-27", "habitat": "on low north-sloping limestone cuestas", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Brewster", "municipality": "", "locality": "1 mi NE of Solis Ranch house, Big Bend Nat. Park", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "579", "maximumElevationInMeters": ""}