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": ""}
 S Ontario   m 21817  prairie remnant along river d8N  Thalictrum venulosum ]u&r   _ CHAPPLE TWP., MAITOU MOUNDS, N SHORE OF RAINY RIVER, CA. 8.7KM SE FO STR ATTON P.O. ranunculales L    ~ja 48 38.74 N, 94 3.7   d MICHAEL J. OLDHAM Thalictrum IQ2       D Canada   1999-06-12 4Z      jM<  48.64574   trel. n6X% 
{"catalogNumber": "", "order": "Ranunculales", "family": "", "scientificName": "Thalictrum venulosum", "scientificNameAuthorship": "Trel.", "genus": "Thalictrum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "21817", "verbatimEventDate": "1999-06-12", "habitat": "prairie remnant along river", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Chapple Twp., Manitou Mounds, N shore of Rainy River, ca. 8.7km SE fo Stratton P.O.", "decimalLatitude": "48.64574", "decimalLongitude": "", "verbatimCoordinates": "48 38.74 N, 94 3.7 W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}