A discussion can be abstract.Logical formLearned from15 sentences. Unity can be abstract.Logical formLearned from15 sentences. Geometric shapes can be abstract.Logical formLearned from15 sentences. An expression can be abstract.Logical formLearned from15 sentences. A functionality can be abstract.Logical formLearned from15 sentences. A counterpart can be abstract.Logical formLearned from15 sentences. A label can be abstract.Logical formLearned from15 sentences. A feature can be abstract.Logical formLearned from15 sentences. An issue can be abstract.Logical formLearned from15 sentences. A pioneer can be abstract.Logical formLearned from15 sentences. A realism can be abstract.Logical formLearned from14 sentences. A direction can be abstract.Logical formLearned from14 sentences. Investigations can be abstract.Logical formLearned from14 sentences. Means can be abstract.Logical formLearned from14 sentences. An objective can be abstract.Logical formLearned from14 sentences.