Ranges can be (strike ridges).Logical formLearned from2 sentences. Ridges can be developed.Logical formLearned from2 sentences. Ridges may pertain-to an area.Logical formLearned from2 sentences. A terrain may consist of ridges.Logical formLearned from2 sentences. Skin may form ridges.Logical formLearned from2 sentences. (Mountain ridges) can be tall.Logical formLearned from2 sentences. Peaks may pertain-to ridges.Logical formLearned from2 sentences. Sides of ridges can be steep.Logical formLearned from2 sentences. Some main ridges may run on some side of a river.Logical formLearned from2 sentences. Ridges can be depressions.Logical formLearned from2 sentences. Divisions may be placed behind ridges.Logical formLearned from2 sentences. (System ridges) can be low-level.Logical formLearned from2 sentences. (System ridges) can be dense.Logical formLearned from2 sentences. (System ridges) can be in easts of a (mountain barrier).Logical formLearned from2 sentences. (Limestone ridges) can be parallel.Logical formLearned from2 sentences.