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": ""}
17964 3         1995-08-08 <    n shallow water at edge of rainy river  ^ schoenoplectus    ONTARIO Atwood Township, Rainy River, ca. 1km upst ream from mouth, near Oak Grove Camp V    F#=G Schoenoplectus acutus  (MUHL. EX BIGELOW) Ã. LÃ¶VEs & D. LÃ¶VE  cI;z   =h^ CANADA      :izEc acutus   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Schoenoplectus acutus", "scientificNameAuthorship": "(Muhl. ex Bigelow) \u00c3\u0081. L\u00c3\u00b6ve & D. L\u00c3\u00b6ve", "genus": "Schoenoplectus", "subgenus": "", "specificEpithet": "acutus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "17964", "verbatimEventDate": "1995-08-08", "habitat": "shallow water at edge of Rainy River", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Atwood Township, Rainy River, ca. 1km upstream from mouth, near Oak Grove Camp", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}