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": ""}
 N~ SCHOOLCRAFT EXPEDITION TO THE SOURCE OF THE MISSISSIPPI RIVER  & 1500333   douglass houghton    gmelinii Q;  ranunculus  jfb   wxzp -95.199  $^c United States     clearwater lac la biche [lake itasca], sources of mississippi mbF9C  MINNESOTA ~      [:M 1832-07-13 water P1bb  ranunculales _!  42 5&Vd<  Ranunculaceae %f a     Ranunculus gmeli_nii jg 4u  DC. $Tngn  47.214 ~5 
{"catalogNumber": "1500333", "order": "Ranunculales", "family": "Ranunculaceae", "scientificName": "Ranunculus gmelinii", "scientificNameAuthorship": "DC.", "genus": "Ranunculus", "subgenus": "", "specificEpithet": "gmelinii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Douglass Houghton", "recordNumber": "42", "verbatimEventDate": "1832-07-13", "habitat": "Water", "occurrenceRemarks": "Schoolcraft Expedition to the Source of the Mississippi River", "associatedTaxa": "", "country": "United States", "stateProvince": "Minnesota", "county": "Clearwater", "municipality": "", "locality": "Lac La Biche [Lake Itasca], sources of Mississippi", "decimalLatitude": "47.214", "decimalLongitude": "-95.199", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}