( ( ( ( Dim ( the lights ) ) and ) ( ( compare ( the luminescence ) ) ( with ( the ( room ( temperature lightstick ) ) ) ) ) ) . )
(ROOT (S (VP (VP (VB Dim) (NP (DT the) (NNS lights))) (CC and) (VP (VB compare) (NP (DT the) (NN luminescence)) (PP (IN with) (NP (DT the) (NN room) (NN temperature) (NN lightstick))))) (. .)))
Dim the lights and compare the luminescence with the room temperature lightstick.
(ROOT (S (NP (NP (NNP Producing) (NN light)) (PP (IN without) (NP (DT a) (JJ high) (NN temperature)))) (VP (VBZ is) (VP (VBN called) (S (ADJP (JJ luminescence))))) (. .)))