(Home runs) may be powered.Logical formLearned from10 sentences. Torpedoes may be powered by electric engines.Logical formLearned from10 sentences. (Ground controllers) may be powered.Logical formLearned from10 sentences. Vehicles may be powered by batteries.Logical formLearned from9 sentences. An aircraft may be powered by engines.Logical formLearned from9 sentences. A monoplane may be powered by an engine.Logical formLearned from9 sentences. A ship may be powered by some engines.Logical formLearned from9 sentences. Cars may be powered by gasoline.Logical formLearned from9 sentences. A river may be powered.Logical formLearned from9 sentences. A motor may be powered.Logical formLearned from9 sentences. A natural gas may be powered.Logical formLearned from9 sentences. A nuclear may be powered.Logical formLearned from9 sentences. Sites may be powered by technology.Logical formLearned from9 sentences. A reader may be powered by feedburner.Logical formLearned from9 sentences. Phones may be powered by an android.Logical formLearned from9 sentences.