most of whom wander about in thick clouds of denial 
(ROOT (S (NP (NP (JJS most)) (WHPP (IN of) (WHNP (WP whom)))) (VP (VBP wander) (ADVP (RB about)) (PP (IN in) (NP (NP (JJ thick) (NNS clouds)) (PP (IN of) (NP (NN denial))))))))
(ROOT (S (NP (NP (JJS )) (WHPP (IN ) (WHNP (WP )))) (VP (VBP ) (ADVP (RB )) (PP (IN ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (NN ))))))))