After performing the step S814, the car navigation apparatus stores {HEAD ~ the extracted guidance information} in {TAIL ~ the reconstructed link}  
in
After performing the step S814 , the car navigation apparatus stores { HEAD ~ the extracted guidance information } in { TAIL ~ the reconstructed link }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH