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": ""}
   KAf MARSHALL  X6v wayne UNITED STATES +)OC      DETROIT   n NYTSSA  m^Si S.N. michigan *f  SYLVATICA =M   NYSSA SYLVATICA |IL    / 42.3414   NOT EVIDENT |W     Z?ZM` CORNALES   5/v=U 1877-06-20    5 -83.0514  R @ NYSSACEAE 
{"catalogNumber": "", "order": "Cornales", "family": "Nyssaceae", "scientificName": "Nyssa sylvatica", "scientificNameAuthorship": "Marshall", "genus": "Nyssa", "subgenus": "", "specificEpithet": "sylvatica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s.n.", "verbatimEventDate": "1877-06-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Wayne", "municipality": "", "locality": "Detroit", "decimalLatitude": "42.3414", "decimalLongitude": "-83.0514", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}