{TAIL ~ an electric motor} for applying an electric steering assist to {HEAD ~ a steering system} of the vehicle 
{ TAIL ~ an electric motor } for applying an electric steering assist to { HEAD ~ a steering system } of the vehicle
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH