Wealth can be abstract.Logical formLearned from4 sentences. A photographer can be abstract.Logical formLearned from4 sentences. A set can be constituted-of-or-filled-with abstract concepts.Logical formLearned from4 sentences. Songs can be abstract.Logical formLearned from4 sentences. An album can be abstract.Logical formLearned from4 sentences. A profile can be abstract.Logical formLearned from4 sentences. Memories can be abstract.Logical formLearned from4 sentences. A trend can be abstract.Logical formLearned from4 sentences. A c can be abstract.Logical formLearned from4 sentences. A video can be abstract.Logical formLearned from4 sentences. (Design goals) can be abstract.Logical formLearned from4 sentences. An abstract expressionist can be known.Logical formLearned from4 sentences. Algebras can be abstract.Logical formLearned from4 sentences. Abstract concepts may undergo a use.Logical formLearned from4 sentences. A 4-polytope can be abstract.Logical formLearned from4 sentences.