A performance can be periodic.Logical formLearned from17 sentences. Estimates can be periodic.Logical formLearned from17 sentences. An operation can be periodic.Logical formLearned from17 sentences. A return can be periodic.Logical formLearned from17 sentences. Burns can be periodic.Logical formLearned from17 sentences. Care can be periodic.Logical formLearned from17 sentences. Expenses can be periodic.Logical formLearned from17 sentences. (Position checks) can be periodic.Logical formLearned from17 sentences. A periodic table may pertain-to (chemical elements).Logical formLearned from17 sentences. A (warming effect) can be periodic.Logical formLearned from17 sentences. Votes can be periodic.Logical formLearned from17 sentences. Windows can be periodic.Logical formLearned from17 sentences. A purges can be periodic.Logical formLearned from17 sentences. Destruction can be periodic.Logical formLearned from17 sentences. Blasts can be periodic.Logical formLearned from17 sentences.