Potential can be periodic.Logical formLearned from58 sentences. Epidemics can be periodic.Logical formLearned from58 sentences. Releases can be periodic.Logical formLearned from58 sentences. A (review requirement) can be periodic.Logical formLearned from57 sentences. Publications can be periodic.Logical formLearned from57 sentences. Cycles can be periodic.Logical formLearned from57 sentences. An element can be in a periodic table.Logical formLearned from55 sentences. Snapshots can be periodic.Logical formLearned from55 sentences. Flare-ups can be periodic.Logical formLearned from55 sentences. Returns can be periodic.Logical formLearned from54 sentences. Showers can be periodic.Logical formLearned from54 sentences. Exercises can be periodic.Logical formLearned from54 sentences. Blackouts can be periodic.Logical formLearned from53 sentences. Rain can be periodic.Logical formLearned from53 sentences. Sessions can be periodic.Logical formLearned from53 sentences.