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": ""}
  RIGIDULUM   m        lot 4, conc. xiv matchedash twp., 8 miles nw of washago. deep (west) bay, sparrow |ake. -3          E POACEAE  PANICUM RIGIDULUM fm   4827 :  Qu      antoDn a. reznicek W*    
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Panicum rigidulum", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "rigidulum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Anton A. Reznicek", "recordNumber": "4827", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Lot 4, Conc. XIV Matchedash Twp., 8 miles NW of Washago. Deep (West) Bay, Sparrow Lake.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}