Aid may pertain-to fins.Logical formLearned from10 sentences. Fins may be removed.Logical formLearned from10 sentences. A rear may pertain-to a dorsal fin.Logical formLearned from10 sentences. Fins can be elongated.Logical formLearned from10 sentences. A propeller may hit a fin of an aircraft.Logical formLearned from10 sentences. A dorsal fin may have an apex.Logical formLearned from9 sentences. Pelvic fins can be short.Logical formLearned from9 sentences. A lobe may pertain-to a dorsal fin.Logical formLearned from9 sentences. Fins can be extended.Logical formLearned from9 sentences. A (fin disc) can be rounded.Logical formLearned from9 sentences. Constant weight can be without fins.Logical formLearned from9 sentences. A surface may pertain-to fins.Logical formLearned from9 sentences. A dorsal fin may be set.Logical formLearned from9 sentences. A dorsal fin may be positioned.Logical formLearned from9 sentences. A dorsal fin can be long.Logical formLearned from9 sentences.