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": ""}
1985-09-04 <o    3 robert w. smith      zG; Asteraceae   xy CANADENSE  XANTHIUM STRUMARIUM VAR. CANADENS3  0R   STRUMARIUM :=   asterales 8  var. _e     G| 1354   fB MICHIGAN    wxo NITED STATES  8Hp XANTHIUM   #*4 (P. Mill.) Torr. & A. Gray 
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "Xanthium strumarium var. canadense", "scientificNameAuthorship": "(P. Mill.) Torr. & A. Gray", "genus": "Xanthium", "subgenus": "", "specificEpithet": "strumarium", "verbatimTaxonRank": "var.", "infraspecificEpithet": "canadense", "identifiedBy": "", "recordedBy": "Robert W. Smith", "recordNumber": "1354", "verbatimEventDate": "1985-09-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}