Some fins can be on a back.Logical formLearned from3 sentences. A caudal fin can be with rays.Logical formLearned from3 sentences. An (adipose fin) can be long.Logical formLearned from3 sentences. An absence may pertain-to an adipose fin.Logical formLearned from3 sentences. A base may pertain-to dorsal (fin rays).Logical formLearned from3 sentences. Pelvic fins may contain some spine.Logical formLearned from3 sentences. An exception may pertain-to a dorsal fin.Logical formLearned from3 sentences. A fin may manifest thickness.Logical formLearned from3 sentences. (Tail fins) can be triangular.Logical formLearned from3 sentences. An organ may be located between bases of pelvic fins.Logical formLearned from3 sentences. A fin may be painted in a black.Logical formLearned from3 sentences. Fins may undergo a use.Logical formLearned from3 sentences. A spot can be at a base of a caudal fin.Logical formLearned from3 sentences. A dorsal fin may bear a spine.Logical formLearned from3 sentences. Lobes may pertain-to pectoral fins.Logical formLearned from3 sentences.