{HEAD ~ The error path} includes a first sub path, a second sub path, a second synthesizer and {TAIL ~ a third sub path} 
includes
{ HEAD ~ The error path } includes a first sub path , a second sub path , a second synthesizer and { TAIL ~ a third sub path }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL