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Term 1: Term 2:

(subclass Pericardium AnimalAnatomicalStructure) Mid-level-ontology.kif 11387-11387 Pericardial sac is a subclass of animal anatomical structure
(subclass Pericardium Container) Mid-level-ontology.kif 11388-11388 Pericardial sac is a subclass of container


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