( ( Incandescent light ) ( ( makes ( ( the ( prism colors ) ) ( close together ) ) ) . ) )
(ROOT (S (NP (JJ Incandescent) (NN light)) (VP (VBZ makes) (S (NP (DT the) (NN prism) (NNS colors)) (VP (VB close) (ADVP (RB together))))) (. .)))
Incandescent light makes the prism colors close together.
(ROOT (S (NP (DT A) (NN prism)) (VP (VBZ helps) (SBAR (S (NP (NNS people)) (VP (VBP understand) (SBAR (WHNP (WP what)) (S (VP (VBZ makes) (PRT (RP up)) (NP (JJ white) (NN light))))))))) (. .)))
A prism helps people understand what makes up white light.