An obstacle can be to operations.Logical formLearned from12 sentences. Obstacles can be for relations.Logical formLearned from12 sentences. An obstacle can be insurmountable.Logical formLearned from12 sentences. A country may be seen as an obstacle.Logical formLearned from12 sentences. An obstacle can be to integration.Logical formLearned from12 sentences. An obstacle can be to a female.Logical formLearned from12 sentences. An obstacle can be at a moment.Logical formLearned from12 sentences. Poverty can be an obstacle.Logical formLearned from12 sentences. A political-leader can be an obstacle to some attempts.Logical formLearned from12 sentences. A (security cabinet) may brand a political-leader an obstacle to peace.Logical formLearned from12 sentences. An obstacle can be to a normalisation of relations.Logical formLearned from12 sentences. Obstacles can be to unity.Logical formLearned from11 sentences. An obstacle can be to a development of relations.Logical formLearned from11 sentences. An obstacle can be to peace.Logical formLearned from11 sentences. An obstacle can be in attempts.Logical formLearned from11 sentences.