{HEAD ~ The process} 7, wherein the first metal oxide and {TAIL ~ the second metal oxide} comprise the same metal oxide 
wherein
{ HEAD ~ The process } 7 , wherein the first metal oxide and { TAIL ~ the second metal oxide } comprise the same metal oxide
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH