A person may travel around a globe.Logical formLearned from17 sentences. Persons may travel on foot.Logical formLearned from17 sentences. A male may travel with a friend.Logical formLearned from17 sentences. A person may travel a year.Logical formLearned from17 sentences. A person may travel throughout a state.Logical formLearned from17 sentences. Some students may travel to a world-city.Logical formLearned from17 sentences. Persons may travel to countries.Logical formLearned from17 sentences. A person may travel in a city.Logical formLearned from17 sentences. Residents may travel to a US-city.Logical formLearned from17 sentences. A pair may travel to a world-city.Logical formLearned from17 sentences. A microcosm may travel.Logical formLearned from17 sentences. News of events may travel throughout a city of doors.Logical formLearned from17 sentences. A lot of persons may travel.Logical formLearned from17 sentences. A military-or-other-action-organization may travel under cover.Logical formLearned from17 sentences. Parents may travel with children.Logical formLearned from17 sentences.