( ( ( ( ( ( ( Monosaccharides and ) disaccharides ) ( ( are also ) ( called ( ( ( simple sugars ) or ) ( simple carbohydrates ) ) ) ) ) , ) and ) ( polysaccharides ( are ( called ( complex carbohydrates ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Monosaccharides) (CC and) (NNS disaccharides)) (VP (VBP are) (ADVP (RB also)) (VP (VBN called) (NP (NP (JJ simple) (NNS sugars)) (CC or) (NP (JJ simple) (NNS carbohydrates)))))) (, ,) (CC and) (S (NP (NNS polysaccharides)) (VP (VBP are) (VP (VBN called) (NP (JJ complex) (NNS carbohydrates))))) (. .)))
Monosaccharides and disaccharides are also called simple sugars or simple carbohydrates, and polysaccharides are called complex carbohydrates.
(ROOT (S (NP (RB Double) (NNS sugars)) (VP (VBP are) (VP (VBN called) (NP (NNS disaccharides)))) (. .)))