( ( ( ( ( Lactose ( is ( ( the sugar ) ( in ( milk products ) ) ) ) ) , ) and ) ( fructose ( is ( found ( in fruits ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Lactose)) (VP (VBZ is) (NP (NP (DT the) (NN sugar)) (PP (IN in) (NP (NN milk) (NNS products)))))) (, ,) (CC and) (S (NP (NN fructose)) (VP (VBZ is) (VP (VBN found) (PP (IN in) (NP (NNS fruits)))))) (. .)))
Lactose is the sugar in milk products, and fructose is found in fruits.
(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))))))))) (. .)))