A spine may pertain-to an anal fin.Logical formLearned from2 sentences. Fins can be striped.Logical formLearned from2 sentences. Pectoral fins can be fan-shaped.Logical formLearned from2 sentences. An anal fin of a fish may evolve into a gonopodium.Logical formLearned from2 sentences. A caudal fin can be pointed.Logical formLearned from2 sentences. A fin can be on an (engine cover).Logical formLearned from2 sentences. Some rays can be in a pectoral fin.Logical formLearned from2 sentences. Fins can be foldable.Logical formLearned from2 sentences. Edges may pertain-to a caudal fin.Logical formLearned from2 sentences. Edges may pertain-to caudal fins.Logical formLearned from2 sentences. A dorsal fin may have a shape.Logical formLearned from2 sentences. (Rail fins) can be on a thruster.Logical formLearned from2 sentences. A position can be to (rail fins).Logical formLearned from2 sentences. A fin can be hard.Logical formLearned from2 sentences. Some rays can be on a pelvic fin.Logical formLearned from2 sentences.