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": ""}
  Schwein. Yl    _87NB Cyperaceae  @ Carex nigromarginata  @$^ Scott   ~6 United States TRS: T2N R29W sec 19 E1/2 )        Carex gPeUF   O 1999-04-09  wx ouachita national forest, approximately 5.5 mi s, 1.5 mi e junction of hwy 80 & business loop hwy 71 in waldron, 4.7 mi e junctionof hwy 71 & county road 30 (fsr) 892), above buffalo creek. 2843 f?09   1380587 B;    ^ nigr0marginata  V v ARKANSAS    
{"catalogNumber": "1380587", "order": "", "family": "Cyperaceae", "scientificName": "Carex nigromarginata", "scientificNameAuthorship": "Schwein.", "genus": "Carex", "subgenus": "", "specificEpithet": "nigromarginata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "2843", "verbatimEventDate": "1999-04-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Scott", "municipality": "", "locality": "Ouachita National Forest, approximately 5.5 mi S, 1.5 mi E junction of Hwy 80 & Business Loop Hwy 71 in Waldron, 4.7 mi E junction of Hwy 71 & County Road 30 (FSR 892), above Buffalo Creek.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "TRS: T2N R29W sec 19 E1/2", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}