lack a strong-minded viewpoint , or a sense of humor . 
(ROOT (S (VP (VB lack) (NP (NP (DT a) (ADJP (JJ strong) (HYPH -) (JJ minded)) (NN viewpoint)) (, ,) (CC or) (NP (NP (DT a) (NN sense)) (PP (IN of) (NP (NN humor)))))) (. .)))
(ROOT (S (VP (VB ) (NP (NP (DT ) (ADJP (JJ ) (HYPH ) (JJ )) (NN )) (, ) (CC ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN )))))) (. )))