Discussions can be periodic.Logical formLearned from75 sentences. A fire can be periodic.Logical formLearned from74 sentences. A (review process) can be periodic.Logical formLearned from74 sentences. A surveillance can be periodic.Logical formLearned from73 sentences. A replacement can be periodic.Logical formLearned from72 sentences. Postings can be periodic.Logical formLearned from70 sentences. Explosions can be periodic.Logical formLearned from70 sentences. Upgrades can be periodic.Logical formLearned from69 sentences. A check can be periodic.Logical formLearned from69 sentences. Eruptions can be periodic.Logical formLearned from68 sentences. Elements may pertain-to a periodic table.Logical formLearned from67 sentences. A continence can be periodic.Logical formLearned from67 sentences. Installments can be periodic.Logical formLearned from67 sentences. A publication can be periodic.Logical formLearned from65 sentences. Oscillations can be periodic.Logical formLearned from64 sentences.