none of which ever seem to hit 
(ROOT (S (NP (NP (NN none)) (WHPP (IN of) (WHNP (WDT which)))) (ADVP (RB ever)) (VP (VBP seem) (S (VP (TO to) (VP (VB hit)))))))
(ROOT (S (NP (NP (NN )) (WHPP (IN ) (WHNP (WDT )))) (ADVP (RB )) (VP (VBP ) (S (VP (TO ) (VP (VB )))))))