{HEAD ~ Examples} of LED chips are GaN, {TAIL ~ InGaN}, AlInGaP, GaP, or any device capable of performing the stated function of emitting light in response to an electrical signal 
are
{ HEAD ~ Examples } of LED chips are GaN , { TAIL ~ InGaN } , AlInGaP , GaP , or any device capable of performing the stated function of emitting light in response to an electrical signal
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