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": ""}
Dry open sandy land 4yxaL  YELLOW RIVER 0      ASTERAC3AE y    E united states  6/  ARTEMISIA     O  1537739   `YN1 CAUDATA   ^ SCHOOLCRAFT EXPEDITION TO THE SOURCE OF THE MISSISSIPPI RIVER   F Michx. s.n. X9  urnett @U7B   a BN2 1831-08-01  asterales ]3w   DOGLASS HOUGHTON F )>]   wisconsin R2~lM 
{"catalogNumber": "1537739", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "Michx.", "genus": "Artemisia", "subgenus": "", "specificEpithet": "caudata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Douglass Houghton", "recordNumber": "s.n.", "verbatimEventDate": "1831-08-01", "habitat": "Dry open sandy land", "occurrenceRemarks": "Schoolcraft Expedition to the Source of the Mississippi River", "associatedTaxa": "", "country": "United States", "stateProvince": "Wisconsin", "county": "Burnett", "municipality": "", "locality": "Yellow River", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}