An article can be abstract.Logical formLearned from8 sentences. Songs can be abstract.Logical formLearned from8 sentences. A characterisation can be abstract.Logical formLearned from8 sentences. An appeal can be abstract.Logical formLearned from8 sentences. A time can be abstract.Logical formLearned from8 sentences. A commodity can be abstract.Logical formLearned from8 sentences. A contemporary art can be abstract.Logical formLearned from8 sentences. Ends can be abstract.Logical formLearned from8 sentences. Human figures can be abstract.Logical formLearned from8 sentences. Geometric patterns can be abstract.Logical formLearned from8 sentences. An endeavor can be abstract.Logical formLearned from8 sentences. A pioneer can be constituted-of-or-filled-with abstract painting.Logical formLearned from8 sentences. A (concept absence) can be abstract.Logical formLearned from8 sentences. An abstract thought may be required for a social life.Logical formLearned from8 sentences. Money can be abstract.Logical formLearned from8 sentences.