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": ""}
  _hxO 1|431107   | UROCHLOA FUSCA  T[ UNITED STATES 53298 ?H   &ss fusca  2 miles west of Rockwal| =P<5       V. L. Cory R1Wi    Ht4 1946-06-18   rockwall  D;L     (Sw.) B.F. Hansen & Wunderlin 6  Poaceae @)    
{"catalogNumber": "1431107", "order": "", "family": "Poaceae", "scientificName": "Urochloa fusca", "scientificNameAuthorship": "(Sw.) B.F. Hansen & Wunderlin", "genus": "", "subgenus": "", "specificEpithet": "fusca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "V. L. Cory", "recordNumber": "53298", "verbatimEventDate": "1946-06-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Rockwall", "municipality": "", "locality": "2 miles west of Rockwall", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}