between dumb fun and just plain dumb 
(ROOT (PP (PP (IN between) (NP (JJ dumb) (NN fun))) (CC and) (ADJP (RB just) (RB plain) (JJ dumb))))
(ROOT (PP (PP (IN ) (NP (JJ ) (NN ))) (CC ) (ADJP (RB ) (RB ) (JJ ))))