#walnut_tree__walnut  any of various trees of the genus Juglans
  supertype:  #nut_tree__nuttree  tree bearing edible nuts
  subtype:  #California_black_walnut  #butternut_tree  #black_walnut_tree  #English_walnut_tree
  substance:  #walnut.wood
  member of:  #genus_Juglans
  part:  #walnut  nut of any of various walnut trees having a wrinkled two-lobed seed with a hard shell

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