An engine may chug.Logical formLearned from18 sentences. An (engine block) may pertain-to a car.Logical formLearned from18 sentences. Engines may undergo approval.Logical formLearned from18 sentences. Engines can be constituted-of-or-filled-with destruction.Logical formLearned from18 sentences. An engine can be in question.Logical formLearned from18 sentences. Indexing can be by (search engines).Logical formLearned from18 sentences. An engine can be comprehensive.Logical formLearned from18 sentences. A male may hear an engine.Logical formLearned from18 sentences. An engine can be fast.Logical formLearned from18 sentences. An engine can be an utility.Logical formLearned from18 sentences. Engines may be revved.Logical formLearned from18 sentences. Some days can be after experiencing (engine problems).Logical formLearned from18 sentences. (Search engine) may work.Logical formLearned from18 sentences. (Search engines) may find a person.Logical formLearned from18 sentences. A version may pertain-to a (rendering engine).Logical formLearned from18 sentences.