Fields can be periodic.Logical formLearned from2 sentences. Royalties can be periodic.Logical formLearned from2 sentences. A (payment schedule) can be periodic.Logical formLearned from2 sentences. (Blood cell counts) can be periodic.Logical formLearned from2 sentences. (Cleaning operations) can be periodic.Logical formLearned from2 sentences. An alignment can be periodic.Logical formLearned from2 sentences. A periodic law can be for (chemical elements).Logical formLearned from2 sentences. A wage can be periodic.Logical formLearned from2 sentences. (Transit events) can be periodic.Logical formLearned from2 sentences. Periodic comets can be short.Logical formLearned from2 sentences. (Business cycles) can be periodic.Logical formLearned from2 sentences. A (platinum group) may pertain-to a periodic table.Logical formLearned from2 sentences. (Condition inspections) can be periodic.Logical formLearned from2 sentences. A jitter can be periodic.Logical formLearned from2 sentences. A (lab testing) can be periodic.Logical formLearned from2 sentences.