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": ""}
1659833 F    ADhk BANK OF VE RMILION RIVER NEAR WHITEFISH   y2~ PONTEDERIA CORDATA VARm. CORDATTA   ]JU>= Canada  A*:-U 7494  <8R K 0NTARIO  cordata o2|K5    Wg^nc 1936-08-13  WfmK pontederiaceae   Eo#n 46â° 24' n. lat., 81â° 14' w. long.   pontederia R  var. ^0V   *QUd< Commelinales   CARL O. GRASSL sSiGL    -.P cordata  e0Z sudbury 
{"catalogNumber": "1659833", "order": "Commelinales", "family": "Pontederiaceae", "scientificName": "Pontederia cordata var. cordata", "scientificNameAuthorship": "", "genus": "Pontederia", "subgenus": "", "specificEpithet": "cordata", "verbatimTaxonRank": "var.", "infraspecificEpithet": "cordata", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "7494", "verbatimEventDate": "1936-08-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Sudbury", "municipality": "", "locality": "Bank of Vermilion River near Whitefish", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "46\u00c2\u00b0 24' N. Lat., 81\u00c2\u00b0 14' W. Long.", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}