( Fructose ( ( ( is sometimes ) ( known ( as ( fruit ( ( sugar or ) levulose ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Fructose)) (VP (VBZ is) (ADVP (RB sometimes)) (VP (VBN known) (PP (IN as) (NP (NN fruit) (NN sugar) (CC or) (NN levulose))))) (. .)))
Fructose is sometimes known as fruit sugar or levulose.
(ROOT (S (NP (NNP Fructose)) (VP (VBZ is) (NP (NP (DT a) (NN sugar)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN found) (PP (IN in) (NP (NNS fruits))))))))) (. .)))