( ( Luminescence Luminescence ) ( ( is ( ( the emission ) ( of ( ( ( light ( as ( ( the result ) ( of ( any stimulus ) ) ) ) ) other ) ( than heat ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Luminescence) (NNP Luminescence)) (VP (VBZ is) (NP (NP (DT the) (NN emission)) (PP (IN of) (NP (NP (ADJP (JJ light) (PP (IN as) (NP (NP (DT the) (NN result)) (PP (IN of) (NP (DT any) (NN stimulus)))))) (JJ other)) (PP (IN than) (NP (NN heat))))))) (. .)))
Luminescence Luminescence is the emission of light as the result of any stimulus 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))))) (. .)))