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": ""}
  canadensis  d   united states  -+u     ~  "OCCASIONAL."       s Conyza canadensis 4sterales VpsE  44.594926 X  BENZIE >5D  william r. ove rlease &     :Uwy 1253266  (L.) CRONQUIST L ,.M   g ROADSI:DE  $ michigan -85.881327 U kT     oD3 . conyza 
{"catalogNumber": "1253266", "order": "Asterales", "family": "", "scientificName": "Conyza canadensis", "scientificNameAuthorship": "(L.) Cronquist", "genus": "Conyza", "subgenus": "", "specificEpithet": "canadensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William R. Overlease", "recordNumber": "", "verbatimEventDate": "", "habitat": "Roadside", "occurrenceRemarks": "\"Occasional.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Benzie", "municipality": "", "locality": "", "decimalLatitude": "44.594926", "decimalLongitude": "-85.881327", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}