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": ""}
 yt6 aster  BENNINGTON 5@[ &]   -73.0515 &9F,J   1857-08 NA2,    h5 4 UNITED STATES  (`~ East Dorset (Town of D%orset)  asteraceae X  umbellatus l E    rp,-f umbellatus  h Asterales     ]R;3A VERMONT  Z s.n.  1539920 V   4c aster umbellatus var. umbellatus  C  var.  43.2588 P_y   KTQ03 GEORGE L. AMES
{"catalogNumber": "1539920", "order": "Asterales", "family": "Asteraceae", "scientificName": "Aster umbellatus var. umbellatus", "scientificNameAuthorship": "", "genus": "Aster", "subgenus": "", "specificEpithet": "umbellatus", "verbatimTaxonRank": "var.", "infraspecificEpithet": "umbellatus", "identifiedBy": "", "recordedBy": "George L. Ames", "recordNumber": "s.n.", "verbatimEventDate": "1857-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Vermont", "county": "Bennington", "municipality": "", "locality": "East Dorset (Town of Dorset)", "decimalLatitude": "43.2588", "decimalLongitude": "-73.0515", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}