A trip can be helpful.Logical formLearned from18 sentences. A trip can be by a president.Logical formLearned from17 sentences. A president can be on a trip.Logical formLearned from17 sentences. A US-president can be on a trip to a continent.Logical formLearned from17 sentences. A trip can be to some nations.Logical formLearned from17 sentences. Trips may be arranged.Logical formLearned from17 sentences. An (upcoming trip) may pertain-to a president.Logical formLearned from17 sentences. A male may take a trip to a continent.Logical formLearned from17 sentences. A trip can be to a (water park).Logical formLearned from17 sentences. A (sailing trip) may pertain-to a male.Logical formLearned from17 sentences. A trip may pertain-to an artist.Logical formLearned from17 sentences. Kilometers may undergo a trip.Logical formLearned from17 sentences. A round trip can be to a world-city.Logical formLearned from17 sentences. A trip can be to games.Logical formLearned from17 sentences. A (school trip) may pertain-to a female.Logical formLearned from17 sentences.