Attitudes may operate at high altitudes.Logical formLearned from6 sentences. A helicopter may operate under contract.Logical formLearned from6 sentences. A company may operate some landfills.Logical formLearned from6 sentences. A person may operate a (vault business).Logical formLearned from6 sentences. Some companies may operate superstores.Logical formLearned from6 sentences. Schools may operate on a schedule.Logical formLearned from6 sentences. A company may operate (hotel barges).Logical formLearned from6 sentences. Companies may operate in the developing world.Logical formLearned from6 sentences. Some refineries may be operated by some companies.Logical formLearned from6 sentences. (R us) may operate some (toy stores).Logical formLearned from6 sentences. The economy may operate at levels.Logical formLearned from6 sentences. A (power control unit) may operate to (power steering).Logical formLearned from6 sentences. Foreign banks may operate in a world-city.Logical formLearned from6 sentences. Experience can be in operatting in a market.Logical formLearned from6 sentences. A bourse may operate.Logical formLearned from6 sentences.