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!:gD fayette    . kentucky river, mouth of elk lick 1539630 A    -84.36667 tn4r:     asteraceae &~e      PDEb  Kentucky  ontarionis =       q: (wiegand) g. l. nesom   6SQrr symCphyotrichum ontarionis  s!ea8 robert peter
{"catalogNumber": "1539630", "order": "", "family": "Asteraceae", "scientificName": "Symphyotrichum ontarionis", "scientificNameAuthorship": "(Wiegand) G. L. Nesom", "genus": "", "subgenus": "", "specificEpithet": "ontarionis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Peter", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Kentucky", "county": "Fayette", "municipality": "", "locality": "Kentucky River, mouth of Elk Lick", "decimalLatitude": "", "decimalLongitude": "-84.36667", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}