{HEAD ~ An engine assembly} may include {TAIL ~ an engine structure} and a camshaft supported on the engine structure 
{ HEAD ~ An engine assembly } may include { TAIL ~ an engine structure } and a camshaft supported on the engine structure
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH