A rule of a gun can be an obstacle to peace.Logical formLearned from11 sentences. An obstacle can be to bilateral relations.Logical formLearned from11 sentences. Obstacles may delay.Logical formLearned from10 sentences. An obstacle may affect bilateral relationship.Logical formLearned from10 sentences. A problem can be an obstacle.Logical formLearned from10 sentences. A government may become an obstacle to a good of a country.Logical formLearned from10 sentences. Obstacles can be true.Logical formLearned from10 sentences. Obstacles may be placed by a country.Logical formLearned from10 sentences. Some obstacles may block progress.Logical formLearned from10 sentences. Obstacles can be in a way of talks.Logical formLearned from10 sentences. An obstacle can be to a development of relations.Logical formLearned from10 sentences. A person may hit an obstacle.Logical formLearned from10 sentences. Obstacles can be to immigration.Logical formLearned from10 sentences. An (obstacle course) can be difficult.Logical formLearned from10 sentences. Obstacles can be economic.Logical formLearned from10 sentences.