landing squarely on `` stupid '' 
(ROOT (S (VP (VBG landing) (ADVP (RB squarely)) (PP (IN on) (`` ``) (ADJP (JJ stupid)) ('' '')))))
(ROOT (S (VP (VBG ) (ADVP (RB )) (PP (IN ) (`` ) (ADJP (JJ )) ('' )))))