The third AND circuit 34 outputs a high signal when {HEAD ~ the victim signal} is at {TAIL ~ a high level} and the aggressor signals are at a low level 
The third AND circuit 34 outputs a high signal when { HEAD ~ the victim signal } is at { TAIL ~ a high level } and the aggressor signals are at a low level
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH