An obstacle may disappear.Logical formLearned from7 sentences. Obstacles can be to trade.Logical formLearned from7 sentences. An obstacle may hinder progress.Logical formLearned from7 sentences. Some obstacle can be to progress.Logical formLearned from7 sentences. A case may be seen as an obstacle.Logical formLearned from7 sentences. An obstacle can be to a resumption of (peace talks).Logical formLearned from7 sentences. An obstacle can be to a drive.Logical formLearned from7 sentences. A leader can be an obstacle to a (peace process).Logical formLearned from7 sentences. Obstacles can be to a resolution of a crisis.Logical formLearned from7 sentences. Obstacles may be presented.Logical formLearned from7 sentences. Obstacles can be an inexperience.Logical formLearned from7 sentences. An obstacle can be to relations.Logical formLearned from7 sentences. A (peace process) may face some obstacles.Logical formLearned from7 sentences. A male may describe as an obstacle to peace.Logical formLearned from7 sentences. An obstacle can be to a trial.Logical formLearned from7 sentences.