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": ""}
   Qo UNITED STATES   S| , OBOVATA     KNOXVILLE A31M  asterales RkG|?        1539120  6i   x|b> Knox   GRPM 50982 cx$   Asteraceae M    H PACKERA OBOVATA  A. Ruth mXC 
{"catalogNumber": "1539120", "order": "Asterales", "family": "Asteraceae", "scientificName": "Packera obovata", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "obovata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. Ruth", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "GRPM 50982", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Knox", "municipality": "", "locality": "Knoxville", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}