detect {TAIL ~ an inconsistency} in data accepted into the system with a rule from {HEAD ~ the third set} of rules 
detect { TAIL ~ an inconsistency } in data accepted into the system with a rule from { HEAD ~ the third set } of rules
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH