More specifically, among {HEAD ~ such oxide materials} are Dy2O3, Er2O3, Eu2O3, Gd2O3, Ho2O3, In2O3, La2O3, Lu2O3, β Mn2O3, Nd2O3, Pr2O3, Sc2O3, Sm2O3, Tb2O3, Tl2O3, Tm2O3, Y2O3 and {TAIL ~ Yb2O3} 
More specifically , among { HEAD ~ such oxide materials } are Dy2O3 , Er2O3 , Eu2O3 , Gd2O3 , Ho2O3 , In2O3 , La2O3 , Lu2O3 , β Mn2O3 , Nd2O3 , Pr2O3 , Sc2O3 , Sm2O3 , Tb2O3 , Tl2O3 , Tm2O3 , Y2O3 and { TAIL ~ Yb2O3 }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL