The economy may be powered.Logical formLearned from17 sentences. The sun may be powered by nuclear fusion.Logical formLearned from17 sentences. A ship may be powered by some triple-expansion engines.Logical formLearned from16 sentences. An underbase may be powered.Logical formLearned from16 sentences. A model may be powered by an engine.Logical formLearned from16 sentences. Internal-combustion engine may be powered.Logical formLearned from16 sentences. Technology may be powered by water.Logical formLearned from16 sentences. A (motor vehicle) may be powered.Logical formLearned from16 sentences. (Propulsion engines) may be powered by solar energy.Logical formLearned from16 sentences. A turbine may be powered.Logical formLearned from16 sentences. Muscle may be powered.Logical formLearned from16 sentences. A (discussion forum) may be powered by vbulletin.Logical formLearned from16 sentences. An eye of a storm may be powered.Logical formLearned from16 sentences. Cars may be powered.Logical formLearned from15 sentences. A turbine may be powered.Logical formLearned from15 sentences.