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": ""}
  OUACHITA NAT. FOREST, ALONG FSR 38 TO SHADY LAKE, 3.2 MI NORTH OF ITS JCT WITH HWY 246, NORTH OF ATHENS & 0.35 MI S OF ENTRANCE ROAD TO SHADY LAKE REC. qW   C`g Carex nigromarginata        schwein. 4M+c   s Polk  *- UNITED STATES  >t poales  Arkansas k         k@;Y# jeff h. rettig  nigromarginata o  
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Carex nigromarginata", "scientificNameAuthorship": "Schwein.", "genus": "", "subgenus": "", "specificEpithet": "nigromarginata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Jeff H. Rettig", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Polk", "municipality": "", "locality": "Ouachita Nat. Forest, along FSR 38 to Shady Lake, 3.2 mi north of its jct with Hwy 246, north of Athens & 0.35 mi S of entrance road to Shady Lake Rec.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}