(subclass Rectum Organ) | Mid-level-ontology.kif 12069-12069 | Rectum is a subclass of organ |
(subclass Rectum BodyVessel) | Mid-level-ontology.kif 12070-12070 | Rectum is a subclass of body vessel |
(subclass Rectum AnimalAnatomicalStructure) | Mid-level-ontology.kif 12071-12071 | Rectum is a subclass of animal anatomical structure |