A picture may remain positive.Logical formLearned from18 sentences. Some stocks may close positive.Logical formLearned from18 sentences. An undertone can be positive.Logical formLearned from18 sentences. A measure can be positive.Logical formLearned from18 sentences. A swimmer may test positive.Logical formLearned from18 sentences. Details can be positive.Logical formLearned from17 sentences. A (growth territory) can be positive.Logical formLearned from17 sentences. A world-city can be positive.Logical formLearned from17 sentences. Economic data can be positive.Logical formLearned from17 sentences. A visit may achieve positive results.Logical formLearned from17 sentences. Advertisements can be positive.Logical formLearned from17 sentences. A scalar curvature can be positive.Logical formLearned from17 sentences. A proportion can be positive.Logical formLearned from17 sentences. Prices can be positive.Logical formLearned from17 sentences. An imaginary part can be positive.Logical formLearned from17 sentences.