Routes may remain closed.Logical formLearned from16 sentences. A helicopter may deviate from a route.Logical formLearned from16 sentences. Routes can be through an (ash cloud).Logical formLearned from16 sentences. A (supply route) can be into a country.Logical formLearned from16 sentences. Route can be to hospitals.Logical formLearned from16 sentences. Routes can be risky.Logical formLearned from16 sentences. A change can be to a route.Logical formLearned from16 sentences. A route may be used by groups.Logical formLearned from16 sentences. Routes can be from a world-city.Logical formLearned from16 sentences. A (smuggling route) can be known.Logical formLearned from16 sentences. A fare can be for a route.Logical formLearned from16 sentences. A route can be for human-smuggling.Logical formLearned from16 sentences. A monopoly can be on routes.Logical formLearned from16 sentences. A route may link a world-city.Logical formLearned from15 sentences. A (trade route) can be maritime.Logical formLearned from15 sentences.