{HEAD ~ The electroluminescence device} provides a great efficiency of light emission, has {TAIL ~ a long life} and exhibits an excellent chromaticity 
has
{ HEAD ~ The electroluminescence device } provides a great efficiency of light emission , has { TAIL ~ a long life } and exhibits an excellent chromaticity
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH