(Expressionist works) can be abstract.Logical formLearned from4 sentences. An indicator can be abstract.Logical formLearned from4 sentences. A pole can be abstract.Logical formLearned from4 sentences. A population can be abstract.Logical formLearned from4 sentences. (Color words) can be abstract.Logical formLearned from4 sentences. A creator can be abstract.Logical formLearned from4 sentences. A curriculum can be abstract.Logical formLearned from4 sentences. A liberalism can be abstract.Logical formLearned from4 sentences. Synchromies can be abstract.Logical formLearned from4 sentences. A theoretical model can be abstract.Logical formLearned from4 sentences. Phonemes can be abstract.Logical formLearned from4 sentences. (Art works) can be abstract.Logical formLearned from4 sentences. Abstract expressionists may be made.Logical formLearned from4 sentences. Contributions can be to abstract algebra.Logical formLearned from4 sentences. A model may involve variety of abstract structures.Logical formLearned from4 sentences.