Process,7, where {TAIL ~ the first parameter} is {HEAD ~ Ci} and where the second parameter and the first parameter are identical 
Process,7 , where { TAIL ~ the first parameter } is { HEAD ~ Ci } and where the second parameter and the first parameter are identical
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH