a particulate filter as a catalyst support substrate having thereon {HEAD ~ a catalyst layer} which contains {TAIL ~ a composite oxide}, wherein 
contains
a particulate filter as a catalyst support substrate having thereon { HEAD ~ a catalyst layer } which contains { TAIL ~ a composite oxide } , wherein
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH