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": ""}
  (michx.) vahl _L  RHYNCHOSPORA INEXPANSA 6l   400482  w  Anonymous Pl. Exs. Grayan. 922 ip<E     RHYNCHOSPORA =<c         H*t L.B2. SMITH     1939-08-13 b      ~b inexpansa 
{"catalogNumber": "1400482", "order": "", "family": "", "scientificName": "Rhynchospora inexpansa", "scientificNameAuthorship": "(Michx.) Vahl", "genus": "Rhynchospora", "subgenus": "", "specificEpithet": "inexpansa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L.B. Smith", "recordNumber": "Anonymous Pl. Exs. Grayan. 922", "verbatimEventDate": "1939-08-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}