{HEAD ~ A catalyst} 3 comprising 4.0 wt % nickel and {TAIL ~ 15.0 wt %} tungsten 
comprising
{ HEAD ~ A catalyst } 3 comprising 4.0 wt % nickel and { TAIL ~ 15.0 wt % } tungsten
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH