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": ""}
 centaurea nigrescens A7  1252666 h#   near Dan's Point, ca. 5 miles W. Copper Harbor @  michigan >/     Frederick J. Hermann Xt    United States  fHOz  16148 -r[    MdzC CENTAUREA   0F 1960-08-22      I  ASTERACEAE  > willd.  /p [pappus none] asterales D@tl>   6]- nigrescens  (U( Kewleenaw
{"catalogNumber": "1252666", "order": "Asterales", "family": "Asteraceae", "scientificName": "Centaurea nigrescens", "scientificNameAuthorship": "Willd.", "genus": "Centaurea", "subgenus": "", "specificEpithet": "nigrescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Frederick J. Hermann", "recordNumber": "16148", "verbatimEventDate": "1960-08-22", "habitat": "", "occurrenceRemarks": "[pappus none]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "near Dan's Point, ca. 5 miles W. Copper Harbor", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}