were paying dues for good books unread 
(ROOT (VP (VBD were) (S (VP (VBG paying) (NP (NNS dues)) (PP (IN for) (NP (NP (JJ good) (NNS books)) (VP (JJ unread))))))))
(ROOT (VP (VBD ) (S (VP (VBG ) (NP (NNS )) (PP (IN ) (NP (NP (JJ ) (NNS )) (VP (JJ ))))))))