The metals containing mesogens are heated to {HEAD ~ a temperature} sufficient to cause {TAIL ~ fusion} to produce a metals containing mesophase pitch 
sufficient to cause
The metals containing mesogens are heated to { HEAD ~ a temperature } sufficient to cause { TAIL ~ fusion } to produce a metals containing mesophase pitch
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH