(Bedrock ridges) can be periodic.Logical formLearned from2 sentences. A scanner can be periodic.Logical formLearned from2 sentences. A periodic table can be wide.Logical formLearned from2 sentences. A scientific review can be periodic.Logical formLearned from2 sentences. Burstings can be periodic.Logical formLearned from2 sentences. Echoes can be periodic.Logical formLearned from2 sentences. Organosilicas can be periodic.Logical formLearned from2 sentences. (Maintenance actions) can be periodic.Logical formLearned from2 sentences. A (timber harvesting) can be periodic.Logical formLearned from2 sentences. Special cases can be periodic.Logical formLearned from2 sentences. An arrangement may impose a periodic variation of amplitude.Logical formLearned from2 sentences. A reconstruction can be periodic.Logical formLearned from2 sentences. A decimal expansion can be periodic.Logical formLearned from2 sentences. Rows may pertain-to a periodic table.Logical formLearned from2 sentences. A changeup can be periodic.Logical formLearned from2 sentences.