An engine may die.Logical formLearned from16 sentences. An engine can be under development.Logical formLearned from16 sentences. A (search engine) can be open.Logical formLearned from16 sentences. A site may contain a (search engine).Logical formLearned from16 sentences. Developer may pertain-to a (search engine).Logical formLearned from16 sentences. (Search engines) may pertain-to a general.Logical formLearned from16 sentences. A (search engine) can be well-known.Logical formLearned from16 sentences. Engines can be efficient.Logical formLearned from16 sentences. Technology can be an engine.Logical formLearned from16 sentences. An engine can be preferred.Logical formLearned from16 sentences. (Steam engines) may pertain-to a country.Logical formLearned from16 sentences. Power may be produced by an engine.Logical formLearned from16 sentences. An engine can be superb.Logical formLearned from16 sentences. Engines may idle.Logical formLearned from16 sentences. A state may pertain-to an engine.Logical formLearned from16 sentences.