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": ""}
United States s2  Asteraceae 5   Wt/<X fencercorners, etc.  DN? (l.) britton ex kearney   o 3lr -84.5   >A,  verbes|na alternifolia s.n.        ]h verbesina   fiH asterakles PROBABLY VICINITY OF LEXINGTON !L      <w 153857  Kentucky S     #+   38.05 robert peter @  alternifolia |z/      1834-08 2r 
{"catalogNumber": "1539857", "order": "Asterales", "family": "Asteraceae", "scientificName": "Verbesina alternifolia", "scientificNameAuthorship": "(L.) Britton ex Kearney", "genus": "Verbesina", "subgenus": "", "specificEpithet": "alternifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Peter", "recordNumber": "s.n.", "verbatimEventDate": "1834-08", "habitat": "Fencer corners, etc.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Kentucky", "county": "", "municipality": "", "locality": "Probably vicinity of Lexington", "decimalLatitude": "38.05", "decimalLongitude": "-84.5", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}