A dorsal fin may have a base.Logical formLearned from6 sentences. A fin may disappear.Logical formLearned from6 sentences. Nails can be on a fin of a manatee.Logical formLearned from6 sentences. A fin may pertain-to a manatee.Logical formLearned from6 sentences. A dorsal fin can be falcate.Logical formLearned from6 sentences. A fin can be upright.Logical formLearned from6 sentences. Spots can be on a dorsal fin.Logical formLearned from6 sentences. Fins may undergo rankings.Logical formLearned from6 sentences. Fins may win.Logical formLearned from6 sentences. Swimming can be with fins.Logical formLearned from6 sentences. A female may have fins.Logical formLearned from6 sentences. A (shark fin) may work as a replacement.Logical formLearned from6 sentences. A fin can be curved.Logical formLearned from6 sentences. A tip may pertain-to a caudal fin.Logical formLearned from6 sentences. Fins can be high.Logical formLearned from6 sentences.