{HEAD ~ the composite oxide} does not contain cerium and does contain {TAIL ~ zirconium} and neodymium as essential components and a rare earth metal R other than cerium and neodymium  
contain
{ HEAD ~ the composite oxide } does not contain cerium and does contain { TAIL ~ zirconium } and neodymium as essential components and a rare earth metal R other than cerium and neodymium
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH