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": ""}
     k!,5  (l.) nash     Sorghastrum nutans k        Y 1517230    B/E POALES      [=n SORGHASTRUM ANTON A. REZNICEK &^p  originlly from a soil conservation service packet planted about 1992. persistent since and expanding. collected from a dense clump of 100+ plants about. scattere!d small clumps appearing elsewhere in the same field. L    
{"catalogNumber": "1517230", "order": "Poales", "family": "", "scientificName": "Sorghastrum nutans", "scientificNameAuthorship": "(L.) Nash", "genus": "Sorghastrum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Originally from a soil conservation service packet planted about 1992. Persistent since and expanding. Collected from a dense clump of 100+ plants about. Scattered small clumps appearing elsewhere in the same field.", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}