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": ""}
     LEMNA       ontariao ua&c   | 45.4         > w. j. cody, w. e. kemp     OTTAWA DISTRICT. CONSTANCE LAKE (12 MILES W OF OTTAWA) B   WU| o forming thick masses in 3 inches water over limestone in smuall embayment off lake   -h[y- -78.98333
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Lemna", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W. J. Cody, W. E. Kemp", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Forming thick masses in 3 inches water over limestone in small embayment off lake", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Ottawa District. Constance Lake (12 miles W of Ottawa)", "decimalLatitude": "45.4", "decimalLongitude": "-78.98333", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}