A canister is connected with a fuel tank to adsorb {HEAD ~ fuel vapor} generated in {TAIL ~ the fuel tank} 
generated in
A canister is connected with a fuel tank to adsorb { HEAD ~ fuel vapor } generated in { TAIL ~ the fuel tank }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL