Assertion list for term "keep the engine".

Results from Ascent++: 5
lubricant CapableOfkeep the engine 0.38
cooling system CapableOfkeep the engine 0.37
fuel CapableOfkeep the engine 0.35
thermostat CapableOfkeep the engine 0.30
power (aspect of engine) CapableOfkeep the engine 0.28