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": ""}
   aUF2S GRPM 43467 Nutt 6srK     hl  1537731  United States [ y  ludoviciana 4`7  304 K~4,B     ,x :O Asteraceae  C.F. Baker N%^T    /6J; LARIMER artemisia ^    laporte T t     Artemisia ludoviciana d   COLORADO [ 4   
{"catalogNumber": "1537731", "order": "", "family": "Asteraceae", "scientificName": "Artemisia ludoviciana", "scientificNameAuthorship": "Nutt.", "genus": "Artemisia", "subgenus": "", "specificEpithet": "ludoviciana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C.F. Baker", "recordNumber": "304", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "GRPM 43467", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "Larimer", "municipality": "", "locality": "Laporte", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}