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": ""}
          Uu sandy banks of the columbia river    y! xanthium varitans   l^:= xanthium Washington <x   WILHELM N. SUKSDORF E0^L     @)A9 United States  *k & KLICKITAT asteraceae   gj     1583 wJ3  ASTERALES s hah 
{"catalogNumber": "", "order": "Asterales", "family": "Asteraceae", "scientificName": "Xanthium varians", "scientificNameAuthorship": "", "genus": "Xanthium", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Wilhelm N. Suksdorf", "recordNumber": "1583", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Washington", "county": "Klickitat", "municipality": "", "locality": "Sandy banks of the Columbia River", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}