An obstacle can be to a trip.Logical formLearned from9 sentences. A person may put obstacles.Logical formLearned from9 sentences. A hard-liner may become an obstacle to reintegration of a country.Logical formLearned from9 sentences. An obstacle can be to reintegration of a country.Logical formLearned from9 sentences. Obstacles may face a country.Logical formLearned from9 sentences. Obstacles can be for peace.Logical formLearned from9 sentences. An obstacle can be to a meeting.Logical formLearned from9 sentences. An existence of committees can be an obstacle to a balloting.Logical formLearned from9 sentences. An obstacle can be to a balloting.Logical formLearned from9 sentences. Obstacles can be to democratization.Logical formLearned from9 sentences. Obstacles can be to free movement.Logical formLearned from9 sentences. Some obstacles may leave.Logical formLearned from9 sentences. Obstacles may be placed in a way of getting relief.Logical formLearned from9 sentences. An obstacle can be in implementing a truce.Logical formLearned from9 sentences. An obstacle can be for refugees.Logical formLearned from9 sentences.