two not very absorbing characters are engaged in a romance 
(ROOT (S (NP (CD two) (ADJP (RB not) (RB very) (JJ absorbing)) (NNS characters)) (VP (VBP are) (VP (VBN engaged) (PP (IN in) (NP (DT a) (NN romance)))))))
(ROOT (S (NP (CD ) (ADJP (RB ) (RB ) (JJ )) (NNS )) (VP (VBP ) (VP (VBN ) (PP (IN ) (NP (DT ) (NN )))))))