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": ""}
United States (  rupr. ex fourn. 5h=?       1419870 Iu   3h=l[ arkansa5   &,[EL pubiflorum Robert E. Perdue, Jr. _:   |p 2119   1955-09-15 )   WZV=F POACEAE  pI-t POALES  Dq=o+ paspalum pubiflorum    paspalum 2p  about 0.5 miles west o hwy. 7 bridge over buffalo river, about 14 miles south of harrison p  Kl  Newton P rH   q 2W R. L. Wilbur 
{"catalogNumber": "1419870", "order": "Poales", "family": "Poaceae", "scientificName": "Paspalum pubiflorum", "scientificNameAuthorship": "Rupr. ex Fourn.", "genus": "Paspalum", "subgenus": "", "specificEpithet": "pubiflorum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R. L. Wilbur", "recordedBy": "Robert E. Perdue, Jr.", "recordNumber": "2119", "verbatimEventDate": "1955-09-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Newton", "municipality": "", "locality": "About 0.5 miles west of Hwy. 7 bridge over Buffalo River, about 14 miles south of Harrison", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}