If the program or process requesting access to the tainted data did have {HEAD ~ focus} of {TAIL ~ the data} at the time of input, then the process 200 proceeds to step 214 
of
If the program or process requesting access to the tainted data did have { HEAD ~ focus } of { TAIL ~ the data } at the time of input , then the process 200 proceeds to step 214
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH