A concept can be abstract.Logical formLearned from72 sentences. A reason can be abstract.Logical formLearned from72 sentences. Conceptions can be abstract.Logical formLearned from71 sentences. A book can be abstract.Logical formLearned from71 sentences. A format can be abstract.Logical formLearned from71 sentences. Persons can be abstract.Logical formLearned from70 sentences. Services can be abstract.Logical formLearned from70 sentences. A goal can be abstract.Logical formLearned from70 sentences. A painting can be abstract.Logical formLearned from70 sentences. A setting can be abstract.Logical formLearned from70 sentences. A speculation can be abstract.Logical formLearned from69 sentences. Truths can be abstract.Logical formLearned from69 sentences. Canvases can be abstract.Logical formLearned from69 sentences. Propositions can be abstract.Logical formLearned from68 sentences. A logic can be abstract.Logical formLearned from66 sentences.