Parents seemed unable to distinguish  good  from  substandard  care.
( Parents ( ( seemed ( unable ( to ( ( distinguish good ) ( from ( substandard care ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Parents)) (VP (VBD seemed) (ADJP (JJ unable) (S (VP (TO to) (VP (VB distinguish) (ADJP (JJ good)) (PP (IN from) (NP (JJ substandard) (NN care)))))))) (. .)))
Parents were acutely aware of the difference between good care and substandard care.
( Parents ( ( ( were ( acutely aware ) ) ( of ( ( the difference ) ( between ( ( ( good care ) and ) ( substandard care ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Parents)) (VP (VBD were) (ADJP (RB acutely) (JJ aware)) (PP (IN of) (NP (NP (DT the) (NN difference)) (PP (IN between) (NP (NP (JJ good) (NN care)) (CC and) (NP (JJ substandard) (NN care))))))) (. .)))