imperfect , love-hate relationship 
(ROOT (S (ADJP (JJ imperfect)) (, ,) (NP (NML (S (VP (NN love) (HYPH -) (VB hate)))) (NN relationship))))
(ROOT (S (ADJP (JJ )) (, ) (NP (NML (S (VP (NN ) (HYPH ) (VB )))) (NN ))))