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