{HEAD ~ Cobalt oxide} and hydroxide of {TAIL ~ various oxidation states} is the preferred material for encapsulation 
of
{ HEAD ~ Cobalt oxide } and hydroxide of { TAIL ~ various oxidation states } is the preferred material for encapsulation
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH