Problems can be an obstacle.Logical formLearned from10 sentences. Obstacles can be to relations.Logical formLearned from10 sentences. An issue may become an obstacle.Logical formLearned from10 sentences. Obstacles can be to a ratification.Logical formLearned from10 sentences. A government may overcome some obstacles.Logical formLearned from10 sentences. An obstacle can be to a campaign.Logical formLearned from10 sentences. An obstacle can be in a way of peace.Logical formLearned from10 sentences. An obstacle can be to a treaty.Logical formLearned from10 sentences. An obstacle can be to reaching an agreement.Logical formLearned from10 sentences. A support may remain an obstacle to peace.Logical formLearned from10 sentences. Persons may experience obstacles.Logical formLearned from10 sentences. An obstacle can be to a settlement of an issue.Logical formLearned from10 sentences. An obstacle can be to taking office.Logical formLearned from10 sentences. A female may face an obstacle.Logical formLearned from10 sentences. Organised crime may remain obstacles.Logical formLearned from10 sentences.