{HEAD ~ The fuel vapor passage} is communicated with {TAIL ~ the fuel tank} to conduct fuel vapor, which is generated in the fuel tank 
is communicated with
{ HEAD ~ The fuel vapor passage } is communicated with { TAIL ~ the fuel tank } to conduct fuel vapor , which is generated in the fuel tank
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH