#chestnut.edible_nut  edible nut of any of various chestnut trees of the genus Castanea
  supertype:  #edible_nut  a hard-shelled seed consisting of an edible kernel or meat enclosed in a woody or leathery shell
  part of:  #chestnut_tree__chestnut  any of several attractive deciduous trees yellow-brown in autumn; yield a hard wood and edible nuts in a prickly bur

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