{HEAD ~ The underlying signal} of the jittering test signal, however, continues to be {TAIL ~ the originally generated test signal} 
continues to be
{ HEAD ~ The underlying signal } of the jittering test signal , however , continues to be { TAIL ~ the originally generated test signal }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL