An operator can be on an airport.Logical formLearned from51 sentences. Some mobile operators can be in a country.Logical formLearned from51 sentences. An operator can be tough.Logical formLearned from51 sentences. Operators can be legitimate.Logical formLearned from51 sentences. A (pipeline operator) may pertain-to a country.Logical formLearned from51 sentences. A (cell phone operator) may pertain-to a country.Logical formLearned from51 sentences. An operator can be state-controlled.Logical formLearned from51 sentences. A control may pertain-to an operator.Logical formLearned from50 sentences. Some (mine operators) can be in a country.Logical formLearned from50 sentences. A (cable tv operator) may pertain-to a nation.Logical formLearned from50 sentences. (Tour operators) can be international.Logical formLearned from50 sentences. A name may pertain-to an operator.Logical formLearned from50 sentences. An operator can be troubled.Logical formLearned from50 sentences. Forecasts can be at an (operator level).Logical formLearned from49 sentences. Operator can be over air.Logical formLearned from49 sentences.