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. (k    Edwin B. Mains    1932-05-18 U  Plant 1 9S t   j3li UNITED STATES  ~!j 42.276018    -83.806645 <M6 4  Washtenaw =GK   @Rf3  salix nigra   +v)R carleton r. ball   >lsJS 1318184      `Be8, MALPIGHIALES  /j_ MARHALL   ,c SALICACEAE  D^s nigra
{"catalogNumber": "1318184", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix nigra", "scientificNameAuthorship": "Marshall", "genus": "", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Carleton R. Ball", "recordedBy": "Edwin B. Mains", "recordNumber": "s.n.", "verbatimEventDate": "1932-05-18", "habitat": "", "occurrenceRemarks": "Plant 1", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.276018", "decimalLongitude": "-83.806645", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}