( Sucrose ( ( is ( ( ( a disaccharide ) , ) ( ( a type ) ( of ( sugar ( made ( of ( two ( sugar units ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Sucrose)) (VP (VBZ is) (NP (NP (DT a) (NN disaccharide)) (, ,) (NP (NP (DT a) (NN type)) (PP (IN of) (NP (NP (NN sugar)) (VP (VBN made) (PP (IN of) (NP (CD two) (NN sugar) (NNS units))))))))) (. .)))
Sucrose is a disaccharide, a type of sugar made of two sugar units.
(ROOT (S (NP (RB Double) (NNS sugars)) (VP (VBP are) (VP (VBN called) (NP (NNS disaccharides)))) (. .)))