(Ice ridges) can be bare.Logical formLearned from1 sentences. Some (mountain ridges) can be to the west of persons.Logical formLearned from1 sentences. (Pressure ridges) may tell a history of a spot.Logical formLearned from1 sentences. Dogs may disappear behind ridges.Logical formLearned from1 sentences. Ridges can be on a floor of a lateral ventricle of a brain.Logical formLearned from1 sentences. Ridges may be caused by winds.Logical formLearned from1 sentences. Ridges can be on a shell of a mollusk.Logical formLearned from1 sentences. Ridges can be similar to corduroy.Logical formLearned from1 sentences. A system of ridges may leave on sand.Logical formLearned from1 sentences. A (metal device) can be with ridges.Logical formLearned from1 sentences. Ridges can be at edges.Logical formLearned from1 sentences. Some whorls may be ringed with oblique ridges.Logical formLearned from1 sentences. A depression can be between ridges.Logical formLearned from1 sentences. A surface can be constituted-of-or-filled-with ridges.Logical formLearned from1 sentences. A series of ridges may form a watershed.Logical formLearned from1 sentences.