An underwater ridge may undergo an extension.Logical formLearned from2 sentences. An underwater ridge may be linked to a mainland.Logical formLearned from2 sentences. An area can be an extension of an underwater ridge.Logical formLearned from2 sentences. A name may derive from a ridge.Logical formLearned from2 sentences. Turbines may be placed on ridges.Logical formLearned from2 sentences. Troops may scan (mountain ridges).Logical formLearned from2 sentences. Allies may seize a ridge.Logical formLearned from2 sentences. A skier may slip off a ridge.Logical formLearned from2 sentences. Ruins may be perched on a ridge.Logical formLearned from2 sentences. A ridge can be on a back.Logical formLearned from2 sentences. Opposition may grow across a ridge.Logical formLearned from2 sentences. A station can be on a ridge.Logical formLearned from2 sentences. A ridge can be on outskirts of a town.Logical formLearned from2 sentences. Ridges may be dotted with trees.Logical formLearned from2 sentences. A (ridge line) may overlook routes.Logical formLearned from2 sentences.