Systems can be constituted-of-or-filled-with ridges.Logical formLearned from5 sentences. A person may lie-flat_down between some ridges.Logical formLearned from5 sentences. Ridges can be in an area.Logical formLearned from5 sentences. Ridges can be with soils.Logical formLearned from5 sentences. (Forehead ridges) may pertain-to a female.Logical formLearned from5 sentences. Some stretch marks may be felt as ridges.Logical formLearned from5 sentences. Ridges can be on a foundation.Logical formLearned from5 sentences. Ridges can be facial.Logical formLearned from5 sentences. Ridges can be constituted-of-or-filled-with muscle.Logical formLearned from5 sentences. Ridges may pertain-to a (bottle cap).Logical formLearned from5 sentences. Ridges can be scattered.Logical formLearned from5 sentences. (Mountain ridges) can be windswept.Logical formLearned from5 sentences. (Eye ridges) may pertain-to a male.Logical formLearned from5 sentences. Ridges may pertain-to scars.Logical formLearned from5 sentences. Ridges may pertain-to a mountain.Logical formLearned from5 sentences.