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": ""}
   RWYV Ubnited States      * Potamogeton    [stipules overlapping, not connate; glands present. p. berchtoldii] [p. pusillus var. tenuissimus (rrh73)] t_dTy        t+ potamogetonaceae  ->r  seney national wildlife refuge  j John L. Sypulski   = 1940-07-17  ; fieber POTAMOGETON BERCHTOLDII Gh$    berchtoldiiI =c 
{"catalogNumber": "", "order": "", "family": "Potamogetonaceae", "scientificName": "Potamogeton berchtoldii", "scientificNameAuthorship": "Fieber", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "berchtoldii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John L. Sypulski", "recordNumber": "", "verbatimEventDate": "1940-07-17", "habitat": "", "occurrenceRemarks": "[Stipules overlapping, not connate; glands present. P. berchtoldii] [P. pusillus var. tenuissimus (RRH73)]", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Seney National Wildlife Refuge", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}