A number of strategies have been devised to modify reactor conditions in {HEAD ~ order} to prevent {TAIL ~ the occurrence} of a decomp in the reactor 
A number of strategies have been devised to modify reactor conditions in { HEAD ~ order } to prevent { TAIL ~ the occurrence } of a decomp in the reactor
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH