(S (S (PP (IN After) (BASENP (DT an) (NN investigation))) (COMMA ,) (S (BASENP (NNP Wikinews)) (VP (VBZ has) (VP (VBN learned) (SBAR (IN that) (S (NP (NP (BASENP (NN oil) (NN spewing)) (PP (IN from) (NP (BASENP (DT a) (NN rupture)) (PP (IN in) (NP (BASENP (DT the) (NN seafloor)) (PP (IN of) (NP (BASENP (DT the) (NNP Gulf)) (PP (IN of) (BASENP (NNP Mexico)))))))))) (PP (IN on) (BASENP (NNP June) (NN 13)))) (VP (VBD was) (NP (NP (QP (BASENP (NN 50)) (PP (TO to) (BASENP (NN 60)))) (NNS feet)) (PP (IN from) (BASENP (DT the) (NNP Deepwater) (NNP Horizon) (NN leak))))))))))) (PERIOD .))