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& k 1350681   gJ$ -8.13931    ju  MARSHALL BETULA  (C  1959-08-20 f kL   Q<17 Betula bapyrifera UNITED STATES gBm   papyrifera -cp     [No wintergreen flavor in bark; leaves as in B. papyrifera; bark shreds dark]  *  530  OC        Michigan `RW    
{"catalogNumber": "1350681", "order": "", "family": "", "scientificName": "Betula papyrifera", "scientificNameAuthorship": "Marshall", "genus": "Betula", "subgenus": "", "specificEpithet": "papyrifera", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "5350", "verbatimEventDate": "1959-08-20", "habitat": "", "occurrenceRemarks": "[No wintergreen flavor in bark; leaves as in B. papyrifera; bark shreds dark]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-89.13931", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}