An optimism can be evolutionary.Logical formLearned from9 sentences. Optimism may continue.Logical formLearned from9 sentences. Optimism can be in an interview.Logical formLearned from9 sentences. (Investor optimism) can be about economic growth.Logical formLearned from9 sentences. Optimism can be pervasive.Logical formLearned from9 sentences. (Investor optimism) can be over prospects.Logical formLearned from9 sentences. Optimism can be about a revival.Logical formLearned from9 sentences. A rally may be based on optimism.Logical formLearned from9 sentences. (Stimulus packages) can be with optimism.Logical formLearned from9 sentences. A US-president may widen a lead with air of optimism.Logical formLearned from9 sentences. Optimism can be about negotiations.Logical formLearned from9 sentences. A rally may generate optimism.Logical formLearned from9 sentences. Stocks may be boosted by optimism.Logical formLearned from9 sentences. Optimism may reach highs.Logical formLearned from9 sentences. Optimism can be among some businesses.Logical formLearned from9 sentences.