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": ""}
george w. letterman 3)9   Sorghastrum elliottii :uTs   + o s.n.   1423987 d  ELLIOTTII    1894-10-21 (mE     3 poales  POACEAE j^;dD   <Ze/ sorghastrum  @B<  unit3d states Texarkana fQ     iUL arkansas    (C. MOHR) NASH [Fd   miller x ~m   
{"catalogNumber": "1423987", "order": "Poales", "family": "Poaceae", "scientificName": "Sorghastrum elliottii", "scientificNameAuthorship": "(C. Mohr) Nash", "genus": "Sorghastrum", "subgenus": "", "specificEpithet": "elliottii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George W. Letterman", "recordNumber": "s.n.", "verbatimEventDate": "1894-10-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Miller", "municipality": "", "locality": "Texarkana", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}