`` shock humor '' will wear thin on all 
(ROOT (S (`` ``) (NP (NN shock) (NN humor)) ('' '') (VP (MD will) (VP (VB wear) (ADJP (JJ thin)) (PP (IN on) (NP (DT all)))))))
(ROOT (S (`` ) (NP (NN ) (NN )) ('' ) (VP (MD ) (VP (VB ) (ADJP (JJ )) (PP (IN ) (NP (DT )))))))