Task: Information Extraction
Input (English):  "process paragraph : : Fuel is converted to energy when air and petrol mix. The car engine burns the mix of air and petrol. Hot gas from the burning pushes the pistons. The resulting energy powers the crankshaft. Crankshaft powers the gears. The gears make the wheels roll. ", "event : The car engine burns the mix of air and petrol.", "entity : air" 
Output (English):  not exist