look at morality , family , and social expectation 
(ROOT (S (VP (VB look) (PP (IN at) (NP (NP (NN morality)) (, ,) (NP (NN family)) (, ,) (CC and) (NP (JJ social) (NN expectation)))))))
(ROOT (S (VP (VB ) (PP (IN ) (NP (NP (NN )) (, ) (NP (NN )) (, ) (CC ) (NP (JJ ) (NN )))))))