Obstacles may undergo an elimination.Logical formLearned from31 sentences. A person may have some obstacles.Logical formLearned from31 sentences. An obstacle can be to using an alternative to embryonic (stem cells).Logical formLearned from31 sentences. Obstacles can be fierce.Logical formLearned from31 sentences. An obstacle can be a demand.Logical formLearned from31 sentences. Persons may overcome an obstacle.Logical formLearned from31 sentences. Obstacles can be to free trade.Logical formLearned from31 sentences. A male may face an obstacle.Logical formLearned from31 sentences. Obstacles can be to doing business.Logical formLearned from31 sentences. An obstacle can be to expansion.Logical formLearned from31 sentences. Obstacles can be in a (peace process).Logical formLearned from31 sentences. Obstacles can be a life.Logical formLearned from30 sentences. Obstacles can be for women.Logical formLearned from30 sentences. A multitude can be constituted-of-or-filled-with obstacles.Logical formLearned from30 sentences. An obstacle can be to progress.Logical formLearned from30 sentences.