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": ""}
 M&x.H Kenora    a? 8  49.833333  Umfreuille. 8 km NW of; C.N.R. crossing of Hwy 642; Loc. #8. g     -91.566667  N% A. DUGAL   hP@ Canada  1983-08-11   itW  Malpighiales 9   *~7 49Â° 50' N, 91Â° 34' W pyrifolia G    Ch 5338   *x ANDERSSON salix pyrifolia G= f   sb. 1457345    c`2 Salicaceae  *!h6 SALIX   MICHAEL J. SHCHEPANEK jq+  Ontario f,] 
{"catalogNumber": "1457345", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix pyrifolia", "scientificNameAuthorship": "Andersson", "genus": "Salix", "subgenus": "", "specificEpithet": "pyrifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "A. Dugal", "recordedBy": "Michael J. Shchepanek", "recordNumber": "5338", "verbatimEventDate": "1983-08-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Kenora", "municipality": "", "locality": "Umfreville. 8 km NW of; C.N.R. crossing of Hwy 642; Loc. #8.", "decimalLatitude": "49.833333", "decimalLongitude": "-91.566667", "verbatimCoordinates": "49\u00c2\u00b0 50' N, 91\u00c2\u00b0 34' W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}