A (wave propagation) can be nonlinear.Logical formLearned from18 sentences. An intensity may pertain-to a wave.Logical formLearned from18 sentences. (Sound waves) can be high-pitched.Logical formLearned from18 sentences. Waves can be irregular.Logical formLearned from18 sentences. Waves may undergo an understanding.Logical formLearned from18 sentences. A succession can be constituted-of-or-filled-with waves.Logical formLearned from18 sentences. A length may pertain-to waves.Logical formLearned from18 sentences. Some wave of foreclosures may loom.Logical formLearned from18 sentences. Waves can be sick.Logical formLearned from18 sentences. A wave can be constituted-of-or-filled-with cold.Logical formLearned from18 sentences. A wave of violence may kill some persons.Logical formLearned from18 sentences. Waves can be constituted-of-or-filled-with downsizing.Logical formLearned from18 sentences. Respects may drink waves.Logical formLearned from18 sentences. A report can be with respect to (breaking waves).Logical formLearned from18 sentences. Respect can be to (breaking waves).Logical formLearned from18 sentences.