For example, by driving along the obtained traffic route, {HEAD ~ a driver} of {TAIL ~ the vehicle} can pick up potential passengers 
of
For example , by driving along the obtained traffic route , { HEAD ~ a driver } of { TAIL ~ the vehicle } can pick up potential passengers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH