( ( ( ( Luminescence ( -LRB- ( light -RRB- ) ) ) Luminescence ) , ) ( ( is ( the ( ( ( giving off ) ( of light ) ) ( by ( means ( other ( than heat ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Luminescence)) (PRN (-LRB- -LRB-) (NP (NN light)) (-RRB- -RRB-)) (NP (NNP Luminescence)) (, ,)) (VP (VBZ is) (NP (NP (DT the)) (VP (VBG giving) (PRT (RP off)) (PP (IN of) (NP (NN light))) (PP (IN by) (NP (NP (NNS means)) (PP (JJ other) (IN than) (NP (NN heat)))))))) (. .)))
Luminescence (light) Luminescence, is the giving off of light by means other than heat.
(ROOT (S (NP (NP (NNP Producing) (NN light)) (PP (IN without) (NP (NN heat)))) (VP (VBZ is) (VP (VBN called) (S (ADJP (JJ luminescence))))) (. .)))