A (production plant) may pertain-to a country.Logical formLearned from19 sentences. A component may pertain-to a production.Logical formLearned from19 sentences. A lack can be constituted-of-or-filled-with (production capacity).Logical formLearned from19 sentences. A region may undergo a production.Logical formLearned from19 sentences. A production can be happy.Logical formLearned from19 sentences. Opera may undergo productions.Logical formLearned from19 sentences. Derivative works may undergo a production.Logical formLearned from19 sentences. A (coal production) may pertain-to a nation.Logical formLearned from19 sentences. A family may undergo a production.Logical formLearned from19 sentences. Improvements can be in (production efficiency).Logical formLearned from19 sentences. Roles can be in productions.Logical formLearned from19 sentences. A (production equipment) can be automated.Logical formLearned from19 sentences. Chemicals may be used in production.Logical formLearned from19 sentences. Ore may undergo a production.Logical formLearned from19 sentences. A production can be equivalent.Logical formLearned from19 sentences.