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": ""}
  51938 +x    _r PECOS V. L. CORY `   ub LEUCOPILA     4$Z, 1946-05-03  # fort stockton lawler courts   1423666 M    - POALES  CXw Poaceae     .`;) Setaria   V1w setaria leucopila  7r united states (SCRIBN. & MERR.) K. SCHUM. ]J     >6 Texas
{"catalogNumber": "1423666", "order": "Poales", "family": "Poaceae", "scientificName": "Setaria leucopila", "scientificNameAuthorship": "(Scribn. & Merr.) K. Schum.", "genus": "Setaria", "subgenus": "", "specificEpithet": "leucopila", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "V. L. Cory", "recordNumber": "51938", "verbatimEventDate": "1946-05-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Pecos", "municipality": "", "locality": "Fort Stockton; Lawler Courts", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}