Groups can be constituted-of-or-filled-with ridges.Logical formLearned from5 sentences. (Beach ridges) can be narrow.Logical formLearned from5 sentences. (Mountain ridges) can be parallel.Logical formLearned from5 sentences. Ridges can be triangular.Logical formLearned from5 sentences. Ridges can be paired.Logical formLearned from5 sentences. Summits may pertain-to ridges.Logical formLearned from5 sentences. Features can be ridges.Logical formLearned from5 sentences. Ridges can be on skin.Logical formLearned from5 sentences. Ridges may pertain-to an ocean.Logical formLearned from5 sentences. Valleys may be separated by ridges.Logical formLearned from5 sentences. (Tooth ridges) can be horny.Logical formLearned from5 sentences. Some ridges can be on a side.Logical formLearned from5 sentences. A position of ridges of high pressure may be reflected by areas of (temperature anomalies).Logical formLearned from5 sentences. A distance can be between ridges.Logical formLearned from5 sentences. Ridges can be constituted-of-or-filled-with lava.Logical formLearned from5 sentences.