Thus, detection of the existence of a vulnerability is used to indicate noncompliance with an associated requirement while absence of a vulnerability is used to indicate {HEAD ~ compliance} with {TAIL ~ the associated requirement} 
with
Thus , detection of the existence of a vulnerability is used to indicate noncompliance with an associated requirement while absence of a vulnerability is used to indicate { HEAD ~ compliance } with { TAIL ~ the associated requirement }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL