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": ""}
  w prunus serotina  occasional shrubby small tree, open jack pine plains. +~   -87.475989 o    ROSACEAE |O&    =~ -  Marquette    1965-06- 19  u%`  1468419 e]::w  SEROTINA n      46.427209 DX#    96 b Prunus   2$ GENTIAN AREA, CA. 9 MI. SE OF NEGUANEE. rosales Sp  MICHIGAN | bg;  
{"catalogNumber": "1468419", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus serotina", "scientificNameAuthorship": "", "genus": "Prunus", "subgenus": "", "specificEpithet": "serotina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1965-06-19", "habitat": "Occasional shrubby small tree, open jack pine plains.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Marquette", "municipality": "", "locality": "Gentian Area, ca. 9 mi. SE of Neguanee.", "decimalLatitude": "46.427209", "decimalLongitude": "-87.475989", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}