A (safety review) can be periodic.Logical formLearned from7 sentences. A calculation can be periodic.Logical formLearned from7 sentences. A pause can be periodic.Logical formLearned from7 sentences. (Rain showers) can be periodic.Logical formLearned from7 sentences. Transmissions can be periodic.Logical formLearned from7 sentences. An imaging can be periodic.Logical formLearned from7 sentences. (Status meetings) can be periodic.Logical formLearned from7 sentences. Agreements can be periodic.Logical formLearned from7 sentences. (Advertisement messages) can be periodic.Logical formLearned from7 sentences. Gluts can be periodic.Logical formLearned from7 sentences. A mapping can be periodic.Logical formLearned from7 sentences. Certifications can be periodic.Logical formLearned from7 sentences. Thunderstorms can be periodic.Logical formLearned from7 sentences. (Security checks) can be periodic.Logical formLearned from7 sentences. Goals can be periodic.Logical formLearned from7 sentences.