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": ""}
   United States t   8N  1937-06-19  GQR_ pa niculata   -tkhd MUHLENBERGIA cloud J   nSJDc POACEAE  Xansas `G /   l& 1427462   POALES l R    623 u@)  (Nutt.) Columbus KNX]   E!  Muhlenbergia paniculata l H0 s. v. fraser    E  illegible] of Aurora  
{"catalogNumber": "1427462", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia paniculata", "scientificNameAuthorship": "(Nutt.) Columbus", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "paniculata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "S. V. Fraser", "recordNumber": "623", "verbatimEventDate": "1937-06-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Kansas", "county": "Cloud", "municipality": "", "locality": "[illegible] of Aurora", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}