An obstacle can be personal.Logical formLearned from12 sentences. An obstacle can be to international relations.Logical formLearned from12 sentences. Obstacles can be enemies.Logical formLearned from12 sentences. Companies may associate themselves with obstacles.Logical formLearned from12 sentences. An obstacle can be shopping.Logical formLearned from12 sentences. An obstacle may deter a female.Logical formLearned from12 sentences. An obstacle to enlarging access can be a number of (phone lines).Logical formLearned from12 sentences. Information can be around an obstacle.Logical formLearned from12 sentences. An obstacle can be to enlarging access.Logical formLearned from12 sentences. An obstacle may lie.Logical formLearned from12 sentences. An obstacle can be to an acceptance.Logical formLearned from12 sentences. Obstacles can be arbitrary.Logical formLearned from12 sentences. Presence can be an obstacle.Logical formLearned from12 sentences. Obstacles can be negative.Logical formLearned from12 sentences. Obstacles can be to drilling.Logical formLearned from12 sentences.