{TAIL ~ The palladium} based three way catalyst is carried on a substrate, which may be {HEAD ~ the trapping material}, in an amount of between about 100 500 g palladium/ft3 of substrate 
{ TAIL ~ The palladium } based three way catalyst is carried on a substrate , which may be { HEAD ~ the trapping material } , in an amount of between about 100 500 g palladium / ft3 of substrate
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH