{HEAD ~ A system} for providing {TAIL ~ fuel} to an engine fuel delivery system and to an exhaust aftertreatment system associated with an engine 
for providing
{ HEAD ~ A system } for providing { TAIL ~ fuel } to an engine fuel delivery system and to an exhaust aftertreatment system associated with an engine
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH