An optimism may be expressed.Logical formLearned from21 sentences. An optimism can be dogged.Logical formLearned from21 sentences. An optimism can be resilient.Logical formLearned from21 sentences. Persons may share an optimism.Logical formLearned from21 sentences. Periods can be constituted-of-or-filled-with optimism.Logical formLearned from21 sentences. An optimism may pertain-to a youth.Logical formLearned from21 sentences. An optimism can be forced.Logical formLearned from21 sentences. A person may like an optimism.Logical formLearned from21 sentences. A person may admire an optimism.Logical formLearned from21 sentences. An optimism can be insane.Logical formLearned from21 sentences. An optimism can be tough-minded.Logical formLearned from21 sentences. An optimism can be unexpected.Logical formLearned from21 sentences. An optimism may pertain-to a nation.Logical formLearned from21 sentences. Optimism can be about demand.Logical formLearned from21 sentences. Optimism may wane that something-is-the-case.Logical formLearned from21 sentences.