Some ridges can be to the north.Logical formLearned from2 sentences. Ridges can be wide-open.Logical formLearned from2 sentences. Ridges can be steep.Logical formLearned from2 sentences. Ridges may pertain-to waves.Logical formLearned from2 sentences. Ridges can be edentulous.Logical formLearned from2 sentences. Signs can be constituted-of-or-filled-with ridges.Logical formLearned from2 sentences. Ridges may pertain-to a range.Logical formLearned from2 sentences. Ridges may exceed dimensions.Logical formLearned from2 sentences. A hub can be constituted-of-or-filled-with ridges.Logical formLearned from2 sentences. A face may pertain-to ridges.Logical formLearned from2 sentences. Ridges can be pristine.Logical formLearned from2 sentences. Outlines may pertain-to (mountain ridges).Logical formLearned from2 sentences. Ridges can be distinguishable.Logical formLearned from2 sentences. (Ocean ridges) may pertain-to oceans.Logical formLearned from2 sentences. Ridges may extend for some kilometers.Logical formLearned from2 sentences.