( ( ( Disaccharide : ) ( ( A carbohydrate ) ( formed ( by ( linking ( ( a pair ) ( of monosaccharides ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Disaccharide)) (: :) (NP (NP (DT A) (NN carbohydrate)) (VP (VBN formed) (PP (IN by) (S (VP (VBG linking) (NP (NP (DT a) (NN pair)) (PP (IN of) (NP (NNS monosaccharides))))))))) (. .)))
Disaccharide : A carbohydrate formed by linking a pair of monosaccharides.
(ROOT (S (NP (PRP You)) (VP (VBP call) (SBAR (S (NP (DT the) (NN carbohydrate)) (VP (VBD formed) (SBAR (WHADVP (WRB when)) (S (NP (CD two) (JJ monosaccharides) (NN bond)) (ADVP (RB together)) (VP (VBP disaccharide)))))))) (. .)))