FIG 2 shows one illustrative example of {HEAD ~ a set} of rules that a user might enter into {TAIL ~ the R&P} modules 
FIG 2 shows one illustrative example of { HEAD ~ a set } of rules that a user might enter into { TAIL ~ the R&P } modules
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH