{HEAD ~ The resulting catalyst} contains {TAIL ~ at least 60 percent} of its pore volume in the 50 to 200 Angstroms diameter range or at least 50% of its pore volume in the 30 to 100 Angstroms diameter range 
{ HEAD ~ The resulting catalyst } contains { TAIL ~ at least 60 percent } of its pore volume in the 50 to 200 Angstroms diameter range or at least 50 % of its pore volume in the 30 to 100 Angstroms diameter range
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH