A cold-blooded vertebrate having an external covering of scales or horny plates. Reptiles breathe by means of lungs and are generally egg-laying.
(=> (Reptile ?Self)
(And (Exists (?A) (And (Component ?Self ?A) (Cold-Blood ?A)))
(Exists (?B)
(And (Embodies ?Self ?B)
(Breathing ?B)
(Exists (?C)
(And (Embodied-In ?B ?C) (Lungs ?C)))))
(Exists (?D)
(And (Component ?Self ?D)
(External-Covering ?D)
(Exists (?E)
(And (Element ?D ?E)
(Or (Scale ?E) (Horny-Plate ?E))))))))