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": ""}
  @T Carex purpurifera    N mack tennessee ex      KV2 carex     United States GRUNDY B%K%   / Steven R. Hill  Rt I-24-N, 0.5 mi W of Monteagle exit, below (N ofy) rest area.X _lA   B+ D purpurifera     T t 1996-04-19  (9 1384286 POALES $Ba  CYPERACEAE RF      
{"catalogNumber": "1384286", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex purpurifera", "scientificNameAuthorship": "Mack.", "genus": "Carex", "subgenus": "", "specificEpithet": "purpurifera", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Steven R. Hill", "recordNumber": "", "verbatimEventDate": "1996-04-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "Grundy", "municipality": "", "locality": "Rt I-24-N, 0.5 mi W of Monteagle exit, below (N of) rest area.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}