Texts can be periodic.Logical formLearned from2 sentences. A massage can be periodic.Logical formLearned from2 sentences. Impulses can be periodic.Logical formLearned from2 sentences. A radiation can be periodic.Logical formLearned from2 sentences. An appointment can be periodic.Logical formLearned from2 sentences. A (maintenance work) can be periodic.Logical formLearned from2 sentences. Mishaps can be periodic.Logical formLearned from2 sentences. Hurdles can be periodic.Logical formLearned from2 sentences. A student can be periodic.Logical formLearned from2 sentences. A waveform can be periodic.Logical formLearned from2 sentences. A comment can be periodic.Logical formLearned from2 sentences. A function can be periodic with period.Logical formLearned from2 sentences. Updates can be periodic.Logical formLearned from2 sentences. An (inquiry function) can be periodic.Logical formLearned from2 sentences. A (climate change) can be periodic.Logical formLearned from2 sentences.