{HEAD ~ Motor} 16 is connected by suitable leads to batteries 20 which provide the required electrical power for operating {TAIL ~ the motor} 
{ HEAD ~ Motor } 16 is connected by suitable leads to batteries 20 which provide the required electrical power for operating { TAIL ~ the motor }
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL