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": ""}
  1491 tKp  1986-04-16 5c-i     ; 1380593   4wbr jeff h. rettig  Poales [A6Wo    hxXc NIGROMARGINATA      ` Carex CYPERACEAE T   4 7Cw LONG POOL REC AREA, OZARK NAT FOREST, NORTHWEST OF DOVER. ABOVE BIG PINEY CREEK, IMMEDIATELY EAST OF CAMPGROUND LOOP B.    #+on United States  oJH arkansas   CAREX NIGROMARGINATA h 0Pt  
{"catalogNumber": "1380593", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex nigromarginata", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "nigromarginata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Jeff H. Rettig", "recordNumber": "1491", "verbatimEventDate": "1986-04-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "", "municipality": "", "locality": "Long Pool Rec Area, Ozark Nat Forest, northwest of Dover. Above Big Piney Creek, immediately east of Campground Loop B.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}