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": ""}
    % z  s.n.  t2~2 George L. Ames, M.D.   [OX salicaceae  Michigan     f 1318165    tS a salix 1867-06-15 Sc46W   G  CARLETON R. BALL  Y MALPIGHIALES    niles      /X BERRIEN  6 -86.254177  G(O Salix nigra   
{"catalogNumber": "1318165", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix nigra", "scientificNameAuthorship": "", "genus": "Salix", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Carleton R. Ball", "recordedBy": "George L. Ames, M.D.", "recordNumber": "s.n.", "verbatimEventDate": "1867-06-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Berrien", "municipality": "", "locality": "Niles", "decimalLatitude": "", "decimalLongitude": "-86.254177", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}