#hazelnut__filbert__cobnut__cob  nut of any of several trees of the genus Corylus
  supertype:  edible_nut  a hard-shelled seed consisting of an edible kernel or meat enclosed in a woody or leathery shell
  part of:  hazelnut_tree__hazelnut__hazel  any of several shrubs or small trees of the genus Corylus bearing edible nuts enclosed in a leafy husk

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