( ( Remember ( that ( fruit ( contains ( fructose ( which ( is ( a sugar ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Remember) (SBAR (IN that) (S (NP (NN fruit)) (VP (VBZ contains) (NP (NP (NN fructose)) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (NP (DT a) (NN sugar)))))))))) (. .)))
Remember that fruit contains fructose which is a sugar.
(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))))))))) (. .)))