( ( ( ( ( ( The light ) ( we see ) ) , ) ( as ( what ( we ( call ( a flame ) ) ) ) ) ) , ) ( ( is ( ( the luminescence ) ( of ( substances ( which ( ( are super ) ( ( heated ( but not ) ) burned ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN light)) (SBAR (S (NP (PRP we)) (VP (VBP see)))) (, ,) (PP (IN as) (SBAR (WHNP (WP what)) (S (NP (PRP we)) (VP (VBP call) (NP (DT a) (NN flame)))))) (, ,)) (VP (VBZ is) (NP (NP (DT the) (NN luminescence)) (PP (IN of) (NP (NP (NNS substances)) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (ADVP (RB super)) (VP (VBN heated) (CONJP (CC but) (RB not)) (VBN burned))))))))) (. .)))
The light we see, as what we call a flame, is the luminescence of substances which are super heated but not burned.
(ROOT (S (NP (NP (NNP Producing) (NN light)) (PP (IN without) (NP (NN heat)))) (VP (VBZ is) (VP (VBN called) (S (ADJP (JJ luminescence))))) (. .)))