When {HEAD ~ a vehicle battery} does not have {TAIL ~ sufficient charge} to start an engine, the driver uses a jumper cable connected between a cigar lighter in the vehicle and the power output socket to charge the battery 
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When { HEAD ~ a vehicle battery } does not have { TAIL ~ sufficient charge } to start an engine , the driver uses a jumper cable connected between a cigar lighter in the vehicle and the power output socket to charge the battery
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH