Muscles may be involved in stabilizing a spine.Logical formLearned from4 sentences. A spine may be maintained in (quality condition).Logical formLearned from4 sentences. A spine can be narrow.Logical formLearned from4 sentences. Spine can be in shape.Logical formLearned from4 sentences. Access can be to a spine.Logical formLearned from4 sentences. Spine may undergo stretchings.Logical formLearned from4 sentences. A spine may be splited.Logical formLearned from4 sentences. A generator can be at a base of a spine.Logical formLearned from4 sentences. A spine can be ..s.Logical formLearned from4 sentences. A spine can be retractable.Logical formLearned from4 sentences. A spine can be with a title.Logical formLearned from4 sentences. A (spine fusion) can be a surgery.Logical formLearned from4 sentences. A spine may fall.Logical formLearned from4 sentences. A spine can be to a top of a head.Logical formLearned from4 sentences. An alignment may pertain-to a spine.Logical formLearned from4 sentences.