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": ""}
  WASHTENAW X6>B         7fc 1476431   Datura KO     ? SOLANACEAE  w4 stramonium      G DATURA STRAMONIUM     UNIVERSITY OF MICHIGAN BOTANICAL GARDENS, DIXBORO SITE, 4.5 MI. NORTHEAST OF ANN ARBOR. WEST CAREX MARSH IN CENTER OF PROPERTY. pU 
{"catalogNumber": "1476431", "order": "", "family": "Solanaceae", "scientificName": "Datura stramonium", "scientificNameAuthorship": "", "genus": "Datura", "subgenus": "", "specificEpithet": "stramonium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor. West Carex Marsh in center of property.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}