#bitter_orange_tree__sour_orange__Seville_orange__bitter_orange__bigarade__marmalade_orange__marmaladeorange__Citrus_aurantium  any of various common orange trees yielding sour or bitter fruit; used as grafting stock
  supertype:  #orange_tree__orange  any citrus tree bearing oranges
  part:  #bitter_orange__Seville_orange__sour_orange  highly acidic orange used especially in marmalade

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