A dorsal fin may be placed.Logical formLearned from3 sentences. A dorsal fin may originate over a rear of bases.Logical formLearned from3 sentences. A length may pertain-to a (fin base).Logical formLearned from3 sentences. Fins may darken.Logical formLearned from3 sentences. Fins may pertain-to a creature.Logical formLearned from3 sentences. Fins can be formed.Logical formLearned from3 sentences. Rays can be in fins.Logical formLearned from3 sentences. A dorsal fin may run.Logical formLearned from3 sentences. (Shark fins) can be among (seafood products).Logical formLearned from3 sentences. Fins may protrude.Logical formLearned from3 sentences. A dorsal fin can be with a spine.Logical formLearned from3 sentences. A dorsal fin can be enlarged.Logical formLearned from3 sentences. A (fin base) can be long.Logical formLearned from3 sentences. Pectoral fins may be positioned.Logical formLearned from3 sentences. A spine can be on a dorsal fin.Logical formLearned from3 sentences.