{HEAD ~ The exhaust system} may include {TAIL ~ a diffuser} configured to receive exhaust from an engine 
include
{ HEAD ~ The exhaust system } may include { TAIL ~ a diffuser } configured to receive exhaust from an engine
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH