A sign can be abstract.Logical formLearned from4 sentences. Abstract models may undergo a development.Logical formLearned from4 sentences. An adulthood can be abstract.Logical formLearned from4 sentences. An artwork can be abstract.Logical formLearned from4 sentences. A statistic can be abstract.Logical formLearned from4 sentences. Writings can be abstract.Logical formLearned from4 sentences. Elements can be abstract.Logical formLearned from4 sentences. (Art galleries) can be abstract.Logical formLearned from4 sentences. A hatred can be abstract.Logical formLearned from4 sentences. Expectations can be abstract.Logical formLearned from4 sentences. An abstract painting can be brilliant.Logical formLearned from4 sentences. An amount can be abstract.Logical formLearned from4 sentences. A swirl can be abstract.Logical formLearned from4 sentences. A techno can be abstract.Logical formLearned from4 sentences. Fiction can be abstract.Logical formLearned from4 sentences.