Soldiers may operate under some (peace agreement).Logical formLearned from23 sentences. A person may operate on some hours of sleep.Logical formLearned from23 sentences. Photosynthesis may operate.Logical formLearned from23 sentences. (Hearing aids) may operate in a mode.Logical formLearned from23 sentences. An international-political-entity may operate by consensus.Logical formLearned from23 sentences. A server may operate.Logical formLearned from23 sentences. Public schools may operate.Logical formLearned from23 sentences. A plane may operate.Logical formLearned from23 sentences. Elements may operate.Logical formLearned from23 sentences. Federal agencies may operate.Logical formLearned from23 sentences. A country may operate a program.Logical formLearned from23 sentences. Software may operate.Logical formLearned from23 sentences. A male may operate a company.Logical formLearned from23 sentences. A boy may operate a lemonade.Logical formLearned from23 sentences. (Market forces) may operate.Logical formLearned from23 sentences.