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": ""}
  CmF 1923-08-29  Conyza 1JZ   6722 ^s =   ea$  oliver a. farwell   V// 1253311   r= 8 asterales  conyza ganadensis KaFE     5 L.) Cronquist  D^d`l United States  st. clair #uj:   42.71434 o   -jmU CANADENSIS MARINE CITY nB$   michigan yeq5&    asteraceae I,    X$ -82.50005
{"catalogNumber": "1253311", "order": "Asterales", "family": "Asteraceae", "scientificName": "Conyza canadensis", "scientificNameAuthorship": "(L.) Cronquist", "genus": "Conyza", "subgenus": "", "specificEpithet": "canadensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Oliver A. Farwell", "recordNumber": "6722", "verbatimEventDate": "1923-08-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "St. Clair", "municipality": "", "locality": "Marine City", "decimalLatitude": "42.71434", "decimalLongitude": "-82.50005", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}