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": ""}
  PgS = livingston cornus sericea U  edwin s. george rserve: 3 mi. west pinckney grid e-11. [cj   UNITED STATES tG!#_    2 18  ,] 1474157 cornaceae ;  F.N. Hamerstrom, Jr. Jq    `O& Cornus    KSf SERICEA  -84.005246 Yy  fishhook marsh, in water. associes: salix. P]s@4  1941-05-28 :8b  james s. wilson    CORNALES s    42.456686 N    1ITN Nichigan  l.  XOp* 
{"catalogNumber": "1474157", "order": "Cornales", "family": "Cornaceae", "scientificName": "Cornus sericea", "scientificNameAuthorship": "L.", "genus": "Cornus", "subgenus": "", "specificEpithet": "sericea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "James S. Wilson", "recordedBy": "F.N. Hamerstrom, Jr.", "recordNumber": "18", "verbatimEventDate": "1941-05-28", "habitat": "Fishhook marsh, in water. Associes: Salix.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Livingston", "municipality": "", "locality": "Edwin S. George Reserve: 3 mi. west Pinckney Grid E-11.", "decimalLatitude": "42.456686", "decimalLongitude": "-84.005246", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}