Among {HEAD ~ these oxide materials} doped with an impurity are In2O3 doped with Ti , {TAIL ~ In2O3} doped with Sn and Y2O3 doped with Nd  
are
Among { HEAD ~ these oxide materials } doped with an impurity are In2O3 doped with Ti , { TAIL ~ In2O3 } doped with Sn and Y2O3 doped with Nd
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH