Obstacles may be encountered.Logical formLearned from60 sentences. An obstacle can be to investment.Logical formLearned from60 sentences. A political-leader can be an obstacle to peace.Logical formLearned from60 sentences. Obstacles can be to implementation.Logical formLearned from59 sentences. Obstacles can be on a road.Logical formLearned from59 sentences. An obstacle can be powerful.Logical formLearned from58 sentences. A person may have obstacles.Logical formLearned from58 sentences. An obstacle can be diplomatic.Logical formLearned from58 sentences. Obstacles can be daily.Logical formLearned from57 sentences. An obstacle can be to (peace efforts).Logical formLearned from57 sentences. An obstacle can be to stability.Logical formLearned from57 sentences. An obstacle can be to a plan.Logical formLearned from56 sentences. Obstacles can be to reform.Logical formLearned from56 sentences. Obstacles can be to investment.Logical formLearned from55 sentences. Obstacles can be inherent.Logical formLearned from54 sentences.