Heads can be with bony ridges.Logical formLearned from2 sentences. Outcrops can be on ridges.Logical formLearned from2 sentences. Ridges may branch to the right.Logical formLearned from2 sentences. Magmatism can be at mid-ocean ridges.Logical formLearned from2 sentences. (Stone structures) may be located around (beach ridges).Logical formLearned from2 sentences. Some ridges can be on a head.Logical formLearned from2 sentences. Some ridges can be constituted-of-or-filled-with high pressure.Logical formLearned from2 sentences. Mid-ocean ridges can be active.Logical formLearned from2 sentences. Mid-ocean ridges may pertain-to the world.Logical formLearned from2 sentences. A shape can be constituted-of-or-filled-with ridges.Logical formLearned from2 sentences. Surfaces can be with (tooth ridges).Logical formLearned from2 sentences. Upper jaws of a turtle may be covered by ridges.Logical formLearned from2 sentences. Divergent boundaries may form mid-ocean ridges.Logical formLearned from2 sentences. Mountains can be in mid-ocean ridges.Logical formLearned from2 sentences. Mid-ocean ridges may have (mountain chains).Logical formLearned from2 sentences.