A male can be an obstacle to reviving a (peace process).Logical formLearned from9 sentences. An obstacle can be continuous.Logical formLearned from9 sentences. An obstacle can be to a plan.Logical formLearned from9 sentences. Obstacles may hinder a (peace process).Logical formLearned from9 sentences. Some obstacle can be to a (peace process).Logical formLearned from9 sentences. An obstacle can be in conditions.Logical formLearned from8 sentences. An issue can be an obstacle to (membership ambitions).Logical formLearned from8 sentences. A US-city can be an obstacle.Logical formLearned from8 sentences. Obstacles can be in fighting a (bird flu).Logical formLearned from8 sentences. Obstacles can be in a region.Logical formLearned from8 sentences. Obstacles can be to projects.Logical formLearned from8 sentences. Obstacles can be in trade.Logical formLearned from8 sentences. An obstacle can be to progress.Logical formLearned from8 sentences. Obstacles can be to a merger.Logical formLearned from8 sentences. Obstacles can be to freedom of movement.Logical formLearned from8 sentences.