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": ""}
asteraceaeb2w   kJLO, Pursh   Anton A. Reznicek  wc    lenawee ~uO A   m MICHIGAN    asterales =,Ox    n rudbeckia  ROBERT W. SMITH IIj   persisting here about 20 y3ars. not mapped.  |/P   1481066 <u_|     Rudbeckia subtomentosaC  SUBTOMENTOSA 1-h;|  UNITED STATES TLm    
{"catalogNumber": "1481066", "order": "Asterales", "family": "Asteraceae", "scientificName": "Rudbeckia subtomentosa", "scientificNameAuthorship": "Pursh", "genus": "Rudbeckia", "subgenus": "", "specificEpithet": "subtomentosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Robert W. Smith", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Persisting here about 20 years. Not mapped.", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Lenawee", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}