A spring can be periodic.Logical formLearned from3 sentences. A death can be periodic.Logical formLearned from3 sentences. Atoms can be in a periodic table.Logical formLearned from3 sentences. (Comet showers) can be periodic.Logical formLearned from3 sentences. A periodic function can be a function.Logical formLearned from3 sentences. A celebration can be periodic.Logical formLearned from3 sentences. (Monsoon winds) can be periodic.Logical formLearned from3 sentences. Chords can be periodic.Logical formLearned from3 sentences. (Abstinence methods) can be periodic.Logical formLearned from3 sentences. An isolation can be periodic.Logical formLearned from3 sentences. (System failures) can be periodic.Logical formLearned from3 sentences. A column can be in a periodic table.Logical formLearned from3 sentences. An agitation can be periodic.Logical formLearned from3 sentences. Verifications can be periodic.Logical formLearned from3 sentences. A repression can be periodic.Logical formLearned from3 sentences.