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": ""}
CAREX CALCIFUGENS 2%?     x Carx barnwell [M8,!  calcifugens F  south carolina 3T     POALES  P   2203 ;*3v      patrick d. mcmillan ]IJVe     M2 1997-04-12   ALONG MYERS CREEK AT MYER7S CREEK SIDING, SAVANNAH RIVER NUCLEAR OPERATIONS AREA. W     pUQ cyperaceae United States W   IOBb1364957
{"catalogNumber": "1364957", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex calcifugens", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "calcifugens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Patrick D. McMillan", "recordNumber": "2203", "verbatimEventDate": "1997-04-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "South Carolina", "county": "Barnwell", "municipality": "", "locality": "Along Myers Creek at Myers Creek Siding, Savannah River Nuclear Operations Area.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}