which also seems to play on a 10-year delay 
(ROOT (SBAR (WHNP (WDT which)) (S (ADVP (RB also)) (VP (VBZ seems) (S (VP (TO to) (VP (VB play) (PP (IN on) (NP (DT a) (NML (CD 10) (HYPH -) (NN year)) (NN delay))))))))))
(ROOT (SBAR (WHNP (WDT )) (S (ADVP (RB )) (VP (VBZ ) (S (VP (TO ) (VP (VB ) (PP (IN ) (NP (DT ) (NML (CD ) (HYPH ) (NN )) (NN ))))))))))