( ( Molecules ( of ( these ( simple sugars ) ) ) ) ( ( ( attach together ) ( to ( ( make long ) ( branching ( chains ( that ( are ( called ( complex carbohydrates ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Molecules)) (PP (IN of) (NP (DT these) (JJ simple) (NNS sugars)))) (VP (VBP attach) (ADVP (RB together)) (S (VP (TO to) (VP (VB make) (ADVP (RB long)) (S (VP (VBG branching) (NP (NP (NNS chains)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBN called) (NP (JJ complex) (NNS carbohydrates))))))))))))) (. .)))
Molecules of these simple sugars attach together to make long branching chains that are called complex carbohydrates.
(ROOT (S (NP (NN Simple) (NNS carbohydrates)) (VP (MD can) (VP (VB be) (VP (VBN classified) (PP (IN in) (NP (NP (NNS terms)) (PP (IN of) (NP (NN chain) (NN length)))))))) (. .)))