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 OPACA  84   G1 David Castaner  1381471 #T=gY  6 miles east of Highway 10 on Highway 20 from Jay.    OKLAHOMA Uw+65   D$Wb Carex       (F.J. HERM.)s P. ROTHR. & REZNIC3K |sa   opaca  N?  POALES O   %Y  7470   `9$fN UNITED STATES CYPERACEAE      /? 1983-05-26  HWi4 DELAWARE   
{"catalogNumber": "1381471", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex opaca", "scientificNameAuthorship": "(F.J. Herm.) P. Rothr. & Reznicek", "genus": "Carex", "subgenus": "", "specificEpithet": "opaca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "David Castaner", "recordNumber": "7470", "verbatimEventDate": "1983-05-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Oklahoma", "county": "Delaware", "municipality": "", "locality": "6 miles east of Highway 10 on Highway 20 from Jay.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}