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": ""}
   paspalum    R. L. Wilbur  Sn    ~Q ] W.A. Silveus   poaceae 8%+Um       $V 4248     @ LOUISIANA Poales  W<    UNITED STATES 7x.Z`  1419716 RKR+#  laeve     Ef PASPALUM LAEVE 
{"catalogNumber": "1419716", "order": "Poales", "family": "Poaceae", "scientificName": "Paspalum laeve", "scientificNameAuthorship": "", "genus": "Paspalum", "subgenus": "", "specificEpithet": "laeve", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R. L. Wilbur", "recordedBy": "W.A. Silveus", "recordNumber": "4248", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Louisiana", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}