An obstacle can be to persons.Logical formLearned from17 sentences. An obstacle can be to reaching an agreement.Logical formLearned from17 sentences. Concerns can be an obstacle.Logical formLearned from17 sentences. An obstacle can be to a desire.Logical formLearned from16 sentences. An obstacle can be to an implementation.Logical formLearned from16 sentences. An obstacle can be to an agreement.Logical formLearned from16 sentences. An obstacle may be cleared.Logical formLearned from16 sentences. An obstacle can be in relations.Logical formLearned from16 sentences. Obstacles may face a (peace process).Logical formLearned from16 sentences. An obstacle can be to legislation.Logical formLearned from16 sentences. An obstacle can be to movement.Logical formLearned from16 sentences. Obstacles can be to membership.Logical formLearned from16 sentences. Obstacles can be to integration.Logical formLearned from16 sentences. Obstacles can be self-imposed.Logical formLearned from16 sentences. Obstacles may be identified.Logical formLearned from16 sentences.