hide new secretions from the parental units 
(ROOT (S (VP (VB hide) (NP (NP (JJ new) (NNS secretions)) (PP (IN from) (NP (DT the) (JJ parental) (NNS units)))))))
(ROOT (S (VP (VB ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (DT ) (JJ ) (NNS )))))))