Some speakers may be powered by a trio of batteries.Logical formLearned from7 sentences. A vehicle may be powered by human motion.Logical formLearned from7 sentences. An (export model) may power a country.Logical formLearned from7 sentences. A (battery saver) may power a (cell phone).Logical formLearned from7 sentences. Platoon may be powered by a country.Logical formLearned from7 sentences. A vehicle may be powered by an engine.Logical formLearned from7 sentences. A torch may be powered by an (ocean wind farm).Logical formLearned from7 sentences. A widget may be powered by a (widget engine).Logical formLearned from7 sentences. A palm may be powered.Logical formLearned from7 sentences. An internal-combustion engine may be powered by hydrogen.Logical formLearned from7 sentences. Devices may be powered.Logical formLearned from7 sentences. Java may be powered.Logical formLearned from7 sentences. Drives may be powered.Logical formLearned from7 sentences. An atom may be powered.Logical formLearned from7 sentences. A mobile phone may be powered by software.Logical formLearned from7 sentences.