{HEAD ~ The first voltage signal} has {TAIL ~ a voltage swing} which is less than a voltage differential between the voltage supply connections 
has
{ HEAD ~ The first voltage signal } has { TAIL ~ a voltage swing } which is less than a voltage differential between the voltage supply connections
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH