Frequencies may make for ridges.Logical formLearned from2 sentences. Ridges can be on some (length scales).Logical formLearned from2 sentences. A (bump map) can be for ridges.Logical formLearned from2 sentences. A valley may be bounded by some ridges.Logical formLearned from2 sentences. Models can be for mid-ocean ridges.Logical formLearned from2 sentences. (Mountain ridges) may pertain-to the south.Logical formLearned from2 sentences. Some ridges may have gaps.Logical formLearned from2 sentences. Ridges can be bright.Logical formLearned from2 sentences. Ridges can be at the right.Logical formLearned from2 sentences. Ridges can be similar in appearance.Logical formLearned from2 sentences. Ridges can be dominant.Logical formLearned from2 sentences. (Mountain ridges) can be above center.Logical formLearned from2 sentences. A line of (mountain ridges) may cast shadows.Logical formLearned from2 sentences. Some system can be constituted-of-or-filled-with ridges.Logical formLearned from2 sentences. Ridges can be grayish.Logical formLearned from2 sentences.