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": ""}
 perfoliatu:m   9   f`L 1539479  f Illinois   O chicago     Cook  UNITED STATES #n W   tKG  W.S. MOFFATT  asteraceae q IG    6X 2 var.  1892-08-16 -  GRPM 42215 ?7     mq!p  Asterales       silphium perfoliatum var. perfoliatum peroliatum kSq   UO(`  Silphium   4 53 s.n.
{"catalogNumber": "1539479", "order": "Asterales", "family": "Asteraceae", "scientificName": "Silphium perfoliatum var. perfoliatum", "scientificNameAuthorship": "", "genus": "Silphium", "subgenus": "", "specificEpithet": "perfoliatum", "verbatimTaxonRank": "var.", "infraspecificEpithet": "perfoliatum", "identifiedBy": "", "recordedBy": "W.S. Moffatt", "recordNumber": "s.n.", "verbatimEventDate": "1892-08-16", "habitat": "", "occurrenceRemarks": "GRPM 42215", "associatedTaxa": "", "country": "United States", "stateProvince": "Illinois", "county": "Cook", "municipality": "", "locality": "Chicago", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}