there is a great deal of fun . 
(ROOT (S (NP (EX there)) (VP (VBZ is) (NP (NP (DT a) (JJ great) (NN deal)) (PP (IN of) (NP (NN fun))))) (. .)))
(ROOT (S (NP (EX )) (VP (VBZ ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN ))))) (. )))