Ridges can be in material.Logical formLearned from2 sentences. A drift may display some ridges.Logical formLearned from2 sentences. A succession of ridges may lead to a horizon.Logical formLearned from2 sentences. Ridges may undergo concentration.Logical formLearned from2 sentences. Ridges may overlap ones.Logical formLearned from2 sentences. Ridges can be over a mile.Logical formLearned from2 sentences. A land may have some ridges.Logical formLearned from2 sentences. Ridges may form a region.Logical formLearned from2 sentences. Ridges can be on a mountain.Logical formLearned from2 sentences. Ridges can be younger.Logical formLearned from2 sentences. Ridges may cross plains.Logical formLearned from2 sentences. Complex networks can be constituted-of-or-filled-with ridges.Logical formLearned from2 sentences. The left may pertain-to ridges.Logical formLearned from2 sentences. Some ridges can be tall.Logical formLearned from2 sentences. Ridges may be formed by compression.Logical formLearned from2 sentences.