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": ""}
  Ontario L       ? 3970 canada  Q!2     p salicaceae   Pg 2 MALPIGHIALES   +7 salix candida    flã¼ggã© ex willd. W   3%+ w Simgoe  west emd of little lake; 3 miles north of barrie ac$t    =M 1973-06-23  . candida  
{"catalogNumber": "", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix candida", "scientificNameAuthorship": "Fl\u00c3\u00bcgg\u00c3\u00a9 ex Willd.", "genus": "", "subgenus": "", "specificEpithet": "candida", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "3970", "verbatimEventDate": "1973-06-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Simcoe", "municipality": "", "locality": "West end of little lake; 3 miles north of Barrie", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}