A dorsal fin may have a spine.Logical formLearned from7 sentences. A spine can be rugged.Logical formLearned from7 sentences. A (fin spine) can be serrated.Logical formLearned from7 sentences. Vertebrae can be in a spine.Logical formLearned from7 sentences. A spine may undergo a motion.Logical formLearned from7 sentences. Spines can be golden.Logical formLearned from7 sentences. Spines can be vicious.Logical formLearned from7 sentences. Spines can be venomous.Logical formLearned from7 sentences. A (stress fracture) may pertain-to a spine.Logical formLearned from7 sentences. Biomechanics may pertain-to a spine.Logical formLearned from7 sentences. A spine can be blue.Logical formLearned from7 sentences. Spines can be tall.Logical formLearned from7 sentences. Trauma can be to a spine.Logical formLearned from7 sentences. Spines may pertain-to volumes.Logical formLearned from7 sentences. Muscles may support a spine.Logical formLearned from7 sentences.