( Lipases ( ( ( break down ) ( fats ( -LRB- ( lipids -RRB- ) ) ) ) . ) )
(ROOT (S (NP (NNS Lipases)) (VP (VBP break) (PRT (RP down)) (NP (NP (NNS fats)) (PRN (-LRB- -LRB-) (NP (NNS lipids)) (-RRB- -RRB-)))) (. .)))
Lipases break down fats (lipids).
(ROOT (S (NP (NNS Lipids)) (VP (VBP are) (VP (VBN broken) (PRT (RP down)) (PP (IN by) (NP (NNS lipases))))) (. .)))