A cold-blooded aquatic vertebrate characterized by fins and breathing by gills. Included here are fishes having either a bony skeleton, such as a perch, or a cartilaginous skeleton, such as a shark, or those lacking a jaw, such as a lamprey or hagfish.
(=> (Fish ?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) (Gills ?C))))) (Exists (?D) (And (Lives-In ?Self ?D) (Water ?D)))))