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": ""}
   Euphorbiaceae %F`N    Gjulf Coata| Plain: Crowley's Ridge and adjoining lowlands. Vicinity of Lake City on the St. Francis river, 16 mi. East of Jonesboro o     =kn3 CROTON  Delzie Demaree U$$     5 united states var. I_sy      croton michauxii var. elliptica Wc    1543470 ^Hb@k      z8  ARKANSApS
{"catalogNumber": "1543470", "order": "", "family": "Euphorbiaceae", "scientificName": "Croton michauxii var. elliptica", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Delzie Demaree", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "", "municipality": "", "locality": "Gulf Coastal Plain: Crowley's Ridge and adjoining lowlands. Vicinity of Lake City on the St. Francis river, 16 mi. East of Jonesboro", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}