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 NIGROMARGINATA Y7F      poales Kj%  thomas f. wieboldt k    8524 2yb   f 1993-05-20         hs nigromarginata  ` W OF HWY 83 ABOGUT 1.5 KM SWOF W VA STATE LINE ON STATE LINE RIDGE, NE OF SLATE.
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Carex nigromarginata", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "nigromarginata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thomas F. Wieboldt", "recordNumber": "8524", "verbatimEventDate": "1993-05-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "W of Hwy 83 about 1.5 km SW of W Va state line on State Line Ridge, NE of Slate.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}