Growth may be powered.Logical formLearned from7 sentences. A random process may be powered by sadness.Logical formLearned from7 sentences. Toys may be powered by mainsprings.Logical formLearned from7 sentences. Cars may be powered by batteries.Logical formLearned from7 sentences. Buses may be powered by a combination of diesel.Logical formLearned from7 sentences. Vehicles may be powered by compressed natural gas.Logical formLearned from7 sentences. A news may be powered.Logical formLearned from7 sentences. A (test explosion) may be powered by plutonium.Logical formLearned from7 sentences. A pc may be powered.Logical formLearned from7 sentences. Equipment may be powered by engines.Logical formLearned from7 sentences. Hand may be powered.Logical formLearned from7 sentences. A virtual machine may be powered.Logical formLearned from7 sentences. Cars may be powered by alternative fuels.Logical formLearned from7 sentences. Mains may be powered.Logical formLearned from7 sentences. Activity may be powered.Logical formLearned from7 sentences.