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": ""}
  VASEY  _ta      hallii   tI 1949-05-15    TEXAS    2E(2< 25 MILES NORTHWEST OF PECOS 8576  fF          a UNITED STATES  POACEAE V~kXM   nPBm Panicum  PANICUM HALLII  3/T    b&y Poales
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum hallii", "scientificNameAuthorship": "Vasey", "genus": "Panicum", "subgenus": "", "specificEpithet": "hallii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "8576", "verbatimEventDate": "1949-05-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "", "municipality": "", "locality": "25 miles northwest of Pecos", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}