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": ""}
   a.f. eby f GP  ASTERALES 6Oe   5 1891-08 Asteraceae 73w   = SYMPHYOTRICHUM MOUNTVILLE (r r   SYMPHYOTRICHUM LANCEOLATUM EzZ&~   `TTv lancaster  s.n. M7    $88 lanceolatum  y PENNSYLVANIA  ` United States (willd.) g. l. nesom 6X`       w(  1539636   GRPM 43797 |^   
{"catalogNumber": "1539636", "order": "Asterales", "family": "Asteraceae", "scientificName": "Symphyotrichum lanceolatum", "scientificNameAuthorship": "(Willd.) G. L. Nesom", "genus": "Symphyotrichum", "subgenus": "", "specificEpithet": "lanceolatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A.F. Eby", "recordNumber": "s.n.", "verbatimEventDate": "1891-08", "habitat": "", "occurrenceRemarks": "GRPM 43797", "associatedTaxa": "", "country": "United States", "stateProvince": "Pennsylvania", "county": "Lancaster", "municipality": "", "locality": "Mountville", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}