{HEAD ~ Preferred compounds} include Bi oxide, Co oxide, Cu oxide, Fe oxide, Mn oxide, and Pr oxide, and {TAIL ~ optionally Ag oxide} 
include
{ HEAD ~ Preferred compounds } include Bi oxide , Co oxide , Cu oxide , Fe oxide , Mn oxide , and Pr oxide , and { TAIL ~ optionally Ag oxide }
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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL