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": ""}
  3bS UNITED STATES LAMIALES S3  hillsdale n    oleaceae J     .m8Z r2w, t7s, section 15. trail rd., s. side. abo9ut 20 km se of hillsdale.  [ PETER W. FRITSCH   mH  "small tree about 7 m tall."  GG MICHIGAN  <m m 4186524   1220117 [D6  1988-06-05 CKU     -84.53251 GeU0  fraxinus ?7    607 ~   s @  Occasional in small thicket inJ meadow, near creek. Edward G. Voss ;D8   oy n|gra
{"catalogNumber": "1220117", "order": "Lamiales", "family": "Oleaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Fraxinus", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "Peter W. Fritsch", "recordNumber": "607", "verbatimEventDate": "1988-06-05", "habitat": "Occasional in small thicket in meadow, near creek.", "occurrenceRemarks": "\"Small tree about 7 m tall.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Hillsdale", "municipality": "", "locality": "R2W, T7S, section 15. Trail Rd., S. side. About 20 km SE of Hillsdale.", "decimalLatitude": "41.86524", "decimalLongitude": "-84.53251", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}