negotiate their imperfect , love-hate relationship 
(ROOT (S (VP (VB negotiate) (NP (PRP$ their) (JJ imperfect) (, ,) (NML (NN love) (HYPH -) (NN hate)) (NN relationship)))))
(ROOT (S (VP (VB ) (NP (PRP$ ) (JJ ) (, ) (NML (NN ) (HYPH ) (NN )) (NN )))))