happens that tells you there is no sense 
(ROOT (VP (VBZ happens) (SBAR (WHNP (WDT that)) (S (VP (VBZ tells) (NP (PRP you)) (SBAR (S (NP (EX there)) (VP (VBZ is) (NP (DT no) (NN sense))))))))))
(ROOT (VP (VBZ ) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (NP (PRP )) (SBAR (S (NP (EX )) (VP (VBZ ) (NP (DT ) (NN ))))))))))