few things in this world more complex -- 
(ROOT (S (NP (NP (JJ few) (NNS things)) (PP (IN in) (NP (DT this) (NN world)))) (ADJP (RBR more) (JJ complex)) (: --)))
(ROOT (S (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (DT ) (NN )))) (ADJP (RBR ) (JJ )) (: )))