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": ""}
S.N. x_   SCHOOLCRAFT EXPEDITION TO THE SOURCE OF THE MISSISSIPPI RIVER T  [z        W  (MICHX.) GREENE    VJ chamaecrista fasciculata fabales     <4N UNITED STATES         1831-08-18  ) i  DOUGLASS HOUGHTON  FABACEAE u   XZzEq 1337777     D#^A] GRANT
{"catalogNumber": "1337777", "order": "Fabales", "family": "Fabaceae", "scientificName": "Chamaecrista fasciculata", "scientificNameAuthorship": "(Michx.) Greene", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Douglass Houghton", "recordNumber": "s.n.", "verbatimEventDate": "1831-08-18", "habitat": "", "occurrenceRemarks": "Schoolcraft Expedition to the Source of the Mississippi River", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Grant", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}