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": ""}
      ! 1831-07-19  Pjdk8 schoolcraft expedition to the source of the mississippi riv3r; date in doubt    G,. linearis   -90.786755 Ymr   I; DROSERA LINEARIS  united tates CI*B      Droseraceae m2[5=       
{"catalogNumber": "", "order": "", "family": "Droseraceae", "scientificName": "Drosera linearis", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "linearis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1831-07-19", "habitat": "", "occurrenceRemarks": "Schoolcraft Expedition to the Source of the Mississippi River; date in doubt", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-90.786755", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}