A dorsal fin may have some soft rays.Logical formLearned from5 sentences. Fins can be for feet.Logical formLearned from5 sentences. A pouch may be formed by pelvic fins.Logical formLearned from5 sentences. Fins may have margins.Logical formLearned from5 sentences. A part may pertain-to fins.Logical formLearned from5 sentences. Pelvic fins can be modified.Logical formLearned from5 sentences. Spines may pertain-to a (dorsal fin).Logical formLearned from5 sentences. Fins can be oval.Logical formLearned from5 sentences. Fins can be streamlined.Logical formLearned from5 sentences. A dorsal fin may pertain-to a dolphin.Logical formLearned from5 sentences. Fins may pertain-to a fish.Logical formLearned from5 sentences. A dorsal fin can be visible.Logical formLearned from5 sentences. An anal fin can be elongated.Logical formLearned from5 sentences. A fish may have a dorsal fin.Logical formLearned from5 sentences. (Shark fins) may be considered.Logical formLearned from5 sentences.