Plumes can be on ridges of helmets.Logical formLearned from2 sentences. Ridges may pertain-to helmets.Logical formLearned from2 sentences. Ridges can be abrupt.Logical formLearned from2 sentences. A cap can be with some ridges.Logical formLearned from2 sentences. A (herbicide placement) can be on ridges.Logical formLearned from2 sentences. Ridges can be as (snow slides).Logical formLearned from2 sentences. (Ocean waves) can be with ridges.Logical formLearned from2 sentences. Ridges can be constituted-of-or-filled-with gas.Logical formLearned from2 sentences. Ridges can be sculptured.Logical formLearned from2 sentences. Ridges may appear.Logical formLearned from2 sentences. (Clad ridges) may raise battlements on high.Logical formLearned from2 sentences. A junction may lose ridges.Logical formLearned from2 sentences. Ridges of an (imitation steel ceiling) may jeer_down that something-is-the-case.Logical formLearned from2 sentences. A position of ridges may be reflected by areas of (temperature anomalies).Logical formLearned from2 sentences. Ridges may undergo a (shift southward).Logical formLearned from2 sentences.