(S (S (S (PP-SBJ (NP (PP (NP (PP (BASENP (NN 鎮火)) (IN の)) (NN ため)) (IN の)) (NN 努力)) (IN は)) (VP (NN 失敗) (VBV し))) (COMMA 、) (S (ADVP (RB その後)) (COMMA 、) (S (PP-SBJ (BASENP (NN 掘削) (NN 装置)) (IN は)) (VP (PP (NP (PP (BASENP (NN 湾)) (IN の)) (NN 底)) (IN に)) (VP (VBV 沈ん) (VP (MD だ))))))) (PERIOD 。))
鎮火 の ため の 努力 は 失敗 し 、 その後 、 掘削 装置 は 湾 の 底 に 沈ん だ 。
Efforts to put out the fire failed and the rig subsequently sank to the bottom of the Gulf .