A macro cell is incorporated into an integrated circuit design to describe {HEAD ~ a fixed arrangement} of {TAIL ~ cells} to be included in the IC 
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A macro cell is incorporated into an integrated circuit design to describe { HEAD ~ a fixed arrangement } of { TAIL ~ cells } to be included in the IC
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH