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": ""}
 UNITED STATES `    S.N.  | rckford       Illinois r?D.n  Michx. mTk    E 1538845     Bvf  canadense  p Asteraceae   = F ASTERALES   g n WINNEBAGO  ks GRPM 40426  Not evident +(^`  1891-08-15 l- D 
{"catalogNumber": "1538845", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "Michx.", "genus": "", "subgenus": "", "specificEpithet": "canadense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s.n.", "verbatimEventDate": "1891-08-15", "habitat": "", "occurrenceRemarks": "GRPM 40426", "associatedTaxa": "", "country": "United States", "stateProvince": "Illinois", "county": "Winnebago", "municipality": "", "locality": "Rockford", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}