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