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": ""}
 S.N. ag~w    E Rosaceae  k6a ernest j. palmer (ehrh.) medik. 6YJ    crataegvs >p |f  calpodendron  H    6?g  CEDRIC L. PORTER HURON ST., WES OF ANN ARBOR, JUST BEFORE REACHING THE CEMETERY. Qma!     w^ ROSALES    #J Crataegus calpodendron UNITED STATES `S   192Q8-10-11 t    8 'tree no. 15' Washtenaw  C    Michigan  g3 
{"catalogNumber": "", "order": "Rosales", "family": "Rosaceae", "scientificName": "Crataegus calpodendron", "scientificNameAuthorship": "(Ehrh.) Medik.", "genus": "Crataegus", "subgenus": "", "specificEpithet": "calpodendron", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Ernest J. Palmer", "recordedBy": "Cedric L. Porter", "recordNumber": "s.n.", "verbatimEventDate": "1928-10-11", "habitat": "", "occurrenceRemarks": "'Tree No. 15'", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Huron St., West of Ann Arbor, just before reaching the cemetery.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}