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": ""}
1419757 B   `>k8$ R. L. WILBUR praecox x      36/= MCINTOSH     8G UNITED STATES   20590 T      Paspalum praecox q| EB    CJ /= GEORGIA   1956-09-21      Y Walter  Wilbur H. Duncan ?4p/ 
{"catalogNumber": "1419757", "order": "", "family": "", "scientificName": "Paspalum praecox", "scientificNameAuthorship": "Walter", "genus": "", "subgenus": "", "specificEpithet": "praecox", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R. L. Wilbur", "recordedBy": "Wilbur H. Duncan", "recordNumber": "20590", "verbatimEventDate": "1956-09-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Georgia", "county": "Mcintosh", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}