(S (S (S (BASENP (NNP BP)) (VP (VP (VBD capped) (BASENP (DT the) (VBG leaking) (NN well))) (PP (IN on) (BASENP (NNP July) (NN 13))))) (SBAR (WHNP (WDT which)) (S (VP (ADVP (RB effectively)) (VP (VP (VBD stopped) (BASENP (NN oil))) (PP (IN from) (S (VP (VBG leaking) (PP (IN into) (BASENP (DT the) (NNP Gulf))))))))))) (PERIOD .))