Approval can be periodic.Logical formLearned from6 sentences. Biopsies can be periodic.Logical formLearned from6 sentences. Rotations can be periodic.Logical formLearned from6 sentences. Freezes can be periodic.Logical formLearned from6 sentences. Descents can be periodic.Logical formLearned from6 sentences. Patches can be periodic.Logical formLearned from6 sentences. (Fire sales) can be periodic.Logical formLearned from6 sentences. A sort of transition may exist in some sorts of periodic motion.Logical formLearned from6 sentences. Counterattacks can be periodic.Logical formLearned from6 sentences. Suggestions can be periodic.Logical formLearned from6 sentences. A cycling can be periodic.Logical formLearned from6 sentences. Collisions can be periodic.Logical formLearned from6 sentences. An adviser can be periodic.Logical formLearned from6 sentences. A respite can be periodic.Logical formLearned from6 sentences. A tax can be periodic.Logical formLearned from6 sentences.