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": ""}
  o -81.30956    gD: pubescens  ` viola    _|Tx canada 43.88732 #QJ     violaceae xQbT  HURON   )   1507526 u      @#4cS Wingham     M38I8 1893-05-24 S.N. d c      
{"catalogNumber": "1507526", "order": "", "family": "Violaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Viola", "subgenus": "", "specificEpithet": "pubescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1893-05-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "Huron", "municipality": "", "locality": "Wingham", "decimalLatitude": "43.88732", "decimalLongitude": "-81.30956", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}