Travel can be outdoor.Logical formLearned from36 sentences. A form can be constituted-of-or-filled-with (time travel).Logical formLearned from36 sentences. Travel can be to a planet.Logical formLearned from36 sentences. A (travel guide) may pertain-to a country.Logical formLearned from36 sentences. A downturn can be in (air travel).Logical formLearned from36 sentences. A government may issue a (travel warning).Logical formLearned from36 sentences. A (travel experience) can be international.Logical formLearned from36 sentences. (Travel restrictions) may be lifted.Logical formLearned from36 sentences. Details may pertain-to (travel plans).Logical formLearned from36 sentences. Bans can be on (air travel).Logical formLearned from36 sentences. Travel can be unfettered.Logical formLearned from36 sentences. A (space travel) may pertain-to a country.Logical formLearned from36 sentences. A (travel document) may pertain-to a male.Logical formLearned from36 sentences. A (travel agency) may pertain-to a country.Logical formLearned from36 sentences. Travel can be from a world-city.Logical formLearned from36 sentences.