An (abelian group) can be periodic.Logical formLearned from2 sentences. A group may be called periodic.Logical formLearned from2 sentences. A theory may pertain-to a periodic table.Logical formLearned from2 sentences. Some (chemical elements) can be in a periodic table.Logical formLearned from2 sentences. Some natural elements can be in a periodic table.Logical formLearned from2 sentences. Periodic points can be constituted-of-or-filled-with some periods.Logical formLearned from2 sentences. Versions may pertain-to a periodic table.Logical formLearned from2 sentences. A (sound source) can be periodic.Logical formLearned from2 sentences. A short-story writer can be periodic.Logical formLearned from2 sentences. A mental illness can be periodic.Logical formLearned from2 sentences. Periodic functions can be with period.Logical formLearned from2 sentences. Tessellations can be periodic.Logical formLearned from2 sentences. A periodic table may end.Logical formLearned from2 sentences. A periodic table may have a symbol.Logical formLearned from2 sentences. Ballots can be periodic.Logical formLearned from2 sentences.