A blueprint can be abstract.Logical formLearned from7 sentences. Literature can be abstract.Logical formLearned from7 sentences. Mathematics can be abstract.Logical formLearned from7 sentences. Arguments can be abstract.Logical formLearned from7 sentences. Opposition can be abstract.Logical formLearned from7 sentences. Deductions can be abstract.Logical formLearned from7 sentences. Advances can be abstract.Logical formLearned from7 sentences. (Symbol systems) can be abstract.Logical formLearned from7 sentences. An imagery can be abstract.Logical formLearned from7 sentences. A request can be abstract.Logical formLearned from7 sentences. Uses can be abstract.Logical formLearned from7 sentences. A (task graph) can be abstract.Logical formLearned from7 sentences. A means can be abstract.Logical formLearned from7 sentences. Abstract concepts may undergo an understanding.Logical formLearned from7 sentences. Predicates can be abstract.Logical formLearned from7 sentences.