(Food shortages) can be periodic.Logical formLearned from19 sentences. A function can be periodic.Logical formLearned from19 sentences. A position can be in a periodic table.Logical formLearned from19 sentences. Waves can be periodic.Logical formLearned from19 sentences. A migration can be periodic.Logical formLearned from19 sentences. Transfusions can be periodic.Logical formLearned from19 sentences. A male may destroy a periodic table.Logical formLearned from19 sentences. Delays can be periodic.Logical formLearned from19 sentences. (Site reviews) can be periodic.Logical formLearned from19 sentences. Swings can be periodic.Logical formLearned from19 sentences. Shutdowns can be periodic.Logical formLearned from19 sentences. A cleansing can be periodic.Logical formLearned from19 sentences. (Debt maturities) can be periodic.Logical formLearned from19 sentences. Trajectories can be periodic.Logical formLearned from19 sentences. Issues can be periodic.Logical formLearned from19 sentences.