Thus, the pipeline circuit 12A, the pipeline circuit 12B, and {HEAD ~ the pipeline circuit} 12C are {TAIL ~ redundant versions} of the same pipeline circuit 
are
Thus , the pipeline circuit 12A , the pipeline circuit 12B , and { HEAD ~ the pipeline circuit } 12C are { TAIL ~ redundant versions } of the same pipeline circuit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH