16. The non-transitory computer readable storage medium of claim 15 , wherein the same entity integrating unit is operable to select an entity having a relative subsumption of a low grade as the representative entity.
15. The non-transitory computer readable storage medium of claim 11 , wherein the same entity integrating unit is operable to select the representative entity by using a relative subsumption between entities in each entity pair, and integrate relations associated with the entity pair around the representative entity.