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": ""}
   XR 47.4017  6tdoo -87.7123   xt ASTERALES michigan $C@Kt  douglass houghton y      oL.+ keweenaw ARTEMISIA l%vo   l. B~F    u 1250470  UNITED STATES  x      ARTEMISIA CAMPESTRIS 2Q!I=   _F  Asteraceae   Keweenaw Point, Lake Superior ,154  
{"catalogNumber": "1250470", "order": "Asterales", "family": "Asteraceae", "scientificName": "Artemisia campestris", "scientificNameAuthorship": "L.", "genus": "Artemisia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Douglass Houghton", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "Keweenaw Point, Lake Superior", "decimalLatitude": "47.4017", "decimalLongitude": "-87.7123", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}