A (study region) may pertain-to a person.Logical formLearned from41 sentences. Claims can be to a region.Logical formLearned from41 sentences. An economic development may pertain-to regions.Logical formLearned from41 sentences. A (population growth) may pertain-to a region.Logical formLearned from41 sentences. A region may pertain-to a disk.Logical formLearned from41 sentences. A region can be fixed.Logical formLearned from41 sentences. A district can be in a region.Logical formLearned from41 sentences. A correspondent can be in a region.Logical formLearned from41 sentences. Targets can be in a (border region).Logical formLearned from41 sentences. Some visits can be to a region.Logical formLearned from41 sentences. An (oil region) can be troubled.Logical formLearned from41 sentences. (Oil installations) may pertain-to a region.Logical formLearned from41 sentences. Uighurs may pertain-to a region.Logical formLearned from41 sentences. Valleys may pertain-to a region.Logical formLearned from41 sentences. Cities can be in regions.Logical formLearned from41 sentences.