Ridges may pertain-to a skull.Logical formLearned from5 sentences. Ridges may pertain-to fingerprints.Logical formLearned from5 sentences. Mid-ocean ridges may be formed by lava.Logical formLearned from5 sentences. Ridges can be crescent-shaped.Logical formLearned from5 sentences. (Mountain ridges) can be steep-sided.Logical formLearned from5 sentences. An image may reveal ridges of dust.Logical formLearned from5 sentences. Ridges can be outlying.Logical formLearned from5 sentences. A (ridge vent) may be installed.Logical formLearned from5 sentences. A ridge can be constituted-of-or-filled-with volcanic rock.Logical formLearned from5 sentences. A ridge of high pressure may promote conditions.Logical formLearned from5 sentences. A road may cut through a ridge.Logical formLearned from5 sentences. A ridge may weaken.Logical formLearned from5 sentences. Some ridges may run.Logical formLearned from5 sentences. A ridge may pertain-to a mountain.Logical formLearned from5 sentences. A ridge can be flat.Logical formLearned from5 sentences.