{TAIL ~ The replacement memory block} includes {HEAD ~ all the required analog row and column driver} and sense circuitry for the memory cells contained in the replacement block 
{ TAIL ~ The replacement memory block } includes { HEAD ~ all the required analog row and column driver } and sense circuitry for the memory cells contained in the replacement block
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH