{TAIL ~ a motor} coupled to the impeller, the motor to rotate the impeller to pump {HEAD ~ a liquid coolant} 
{ TAIL ~ a motor } coupled to the impeller , the motor to rotate the impeller to pump { HEAD ~ a liquid coolant }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD