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": ""}
 "ex herb. e. f. smith." fV     michigan F  Charles F. Wheeler F8lJI         W cirsium pitcheri  cirsium C. =       PP (TORR. EX EATON) TORR. & A. GRAY  emmet NW[z8   PITCHERI <UP   united states A)5W8    +$, asteraceae 
{"catalogNumber": "", "order": "", "family": "Asteraceae", "scientificName": "Cirsium pitcheri", "scientificNameAuthorship": "(Torr. ex Eaton) Torr. & A. Gray", "genus": "Cirsium", "subgenus": "", "specificEpithet": "pitcheri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles F. Wheeler", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"Ex Herb. E. F. Smith.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Emmet", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}