(Humanitarian convoys) may operate.Logical formLearned from6 sentences. Some carriers may operate under a name.Logical formLearned from6 sentences. A company may operate an airplane.Logical formLearned from6 sentences. Employees of special services may operate under an (embassy cover).Logical formLearned from6 sentences. A handful of some (bus routes) may operate.Logical formLearned from6 sentences. Some firefighters may operate across a country.Logical formLearned from6 sentences. An aircraft may be operated by company.Logical formLearned from6 sentences. Some private (security contractors) may operate in a country.Logical formLearned from6 sentences. An office may operate in a world-city.Logical formLearned from6 sentences. Banks may operate in a shadow of a (government bailout).Logical formLearned from6 sentences. Islamic extremists may operate in safe havens.Logical formLearned from6 sentences. An (oil rig) may be operated by (energy giant).Logical formLearned from6 sentences. Some airlines may operate some percent of (trade traffic).Logical formLearned from6 sentences. Recruiters may operate.Logical formLearned from6 sentences. Competitors may operate.Logical formLearned from6 sentences.