Some tribes can be in a region.Logical formLearned from52 sentences. Authority can be in a region.Logical formLearned from52 sentences. Ties can be with regions.Logical formLearned from52 sentences. Migration can be to a region.Logical formLearned from52 sentences. Crops may pertain-to a region.Logical formLearned from52 sentences. Powerhouses may pertain-to a region.Logical formLearned from52 sentences. Some sides can be in a region.Logical formLearned from52 sentences. A region can be free of nuclear weapons.Logical formLearned from52 sentences. A commander may pertain-to a military region.Logical formLearned from52 sentences. A (tribal region) can be lawless.Logical formLearned from52 sentences. Calm can be in a region.Logical formLearned from52 sentences. Coverage may pertain-to a region.Logical formLearned from52 sentences. A region can be industrialised.Logical formLearned from52 sentences. A person may hail from a region.Logical formLearned from52 sentences. Towns may pertain-to a region.Logical formLearned from52 sentences.