from which no interesting concept can escape 
(ROOT (SBAR (WHPP (IN from) (WHNP (WDT which))) (S (NP (DT no) (JJ interesting) (NN concept)) (VP (MD can) (VP (VB escape))))))
(ROOT (SBAR (WHPP (IN ) (WHNP (WDT ))) (S (NP (DT ) (JJ ) (NN )) (VP (MD ) (VP (VB ))))))