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": ""}
  2R_sD UNITED STATES    z8 BENTON 1557740 2&#      @d Ozark Highlands. Springfield Plateau Ecoregion. East end of Lake Keith, just downstream from moutn of Cave Springs  10-0090 Q84Nl  dewey I    7(z Cyperaceae   %l Carex 2010-05-05 Hfv>;   ,! arkansas Carex shortiana ?_R @  POALES  JW    N 36.26158, W 94.227963  6    
{"catalogNumber": "1557740", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex shortiana", "scientificNameAuthorship": "Dewey", "genus": "Carex", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "10-0090", "verbatimEventDate": "2010-05-05", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Benton", "municipality": "", "locality": "Ozark Highlands. Springfield Plateau Ecoregion. East end of Lake Keith, just downstream from moutn of Cave Springs", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "N 36.26158, W 94.227963", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}