#kola_nut__cola_nut  bitter brown seed containing caffein; source of cola extract
  supertype:  nut  usually large hard-shelled seed
  substance of:  cola
  part of:  kola_nut_tree__kola__kola_nut__goora_nut__gooranut__Cola_acuminata  tree bearing large brown nuts containing e.g. caffeine; source of cola extract

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