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": ""}
 !K a nigromarginata  ( 1992-04-04     y OKLAHOMA   18592 DN%V   r united states   CAREX NIGROMARGINATA  S   AUs(. cyperaceae    H trs: t2n r27e sec 18 nw1/4 Lawrence K. Magrath & Stephen D. Garvin b,fYi  Schwein. ?LM=    1380658 L    le lore U    WpO Ouachita National Forest, 3 mi W on SH 63 & 0.5 N of Arkansas/Oklahoma state line, FS stand 248/6N.    s+ poales Carex oSBSw 
{"catalogNumber": "1380658", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex nigromarginata", "scientificNameAuthorship": "Schwein.", "genus": "Carex", "subgenus": "", "specificEpithet": "nigromarginata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Lawrence K. Magrath & Stephen D. Garvin", "recordNumber": "18592", "verbatimEventDate": "1992-04-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Oklahoma", "county": "Le Flore", "municipality": "", "locality": "Ouachita National Forest, 3 mi W on SH 63 & 0.5 N of Arkansas/Oklahoma state line, FS stand 248/6N.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "TRS: T2N R27E sec 18 NW1/4", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}