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": ""}
121664  (w    sh united states   Y R. Dale Thomas  w)sN  1460940  | Ouachita   IPOMOEA 7,t^   ,^GB  Along railroad tracks at DeSiard Avenue and 6th Street in downtown Monroe  _[>  IPOMOEA PURPUREA 1990-10-10 H5sbD    purpurea O       t (l.) roth   CONVOLVULACEAE K   louisiana hp/ ,  solanales Hq 
{"catalogNumber": "1460940", "order": "Solanales", "family": "Convolvulaceae", "scientificName": "Ipomoea purpurea", "scientificNameAuthorship": "(L.) Roth", "genus": "Ipomoea", "subgenus": "", "specificEpithet": "purpurea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R. Dale Thomas", "recordNumber": "121664", "verbatimEventDate": "1990-10-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Louisiana", "county": "Ouachita", "municipality": "", "locality": "Along railroad tracks at DeSiard Avenue and 6th Street in downtown Monroe", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}