( ( ( ( ( Nonstructural carbohydrates ) , ) ( which ( include ( plant ( ( sugars and ) starches ) ) ) ) ) , ) ( ( are ( highly digestible ) ) . ) )
(ROOT (S (NP (NP (JJ Nonstructural) (NNS carbohydrates)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP include) (NP (NN plant) (NNS sugars) (CC and) (NNS starches))))) (, ,)) (VP (VBP are) (ADJP (RB highly) (JJ digestible))) (. .)))
Nonstructural carbohydrates, which include plant sugars and starches, are highly digestible.
(ROOT (S (NP (NNS Carbohydrates)) (VP (VBP are) (NP (NP (DT an) (JJ important) (NN group)) (PP (IN of) (NP (JJ biological) (NNS molecules))) (SBAR (WHNP (WDT that)) (S (VP (VBZ includes) (NP (NNS sugars) (CC and) (NNS starches))))))) (. .)))