(S (S (PP-SBJ (BASENP (NN 彼)) (IN は)) (COMMA 、) (VP (SBAR (S (PP-SBJ (BASENP (NN 彼)) (IN が)) (VP (PP (NP (PP (PP (BASENP (NNP ホワイトハウス)) (IN へ)) (IN の)) (NP (S-REL-NSBJ (VP (PP-OBJ (BASENP (NN 航空機)) (IN を)) (VP (VBV 使っ) (VP (MD た))))) (NP (PP (BASENP (NN 将来)) (IN の)) (NN 攻撃)))) (IN で)) (VP (PP-OBJ (BASENP (NN 役割)) (IN を)) (VP (VB 果たす) (VP (MDP (NN 予定) (MDV だっ)) (VP (MD た))))))) (INQT と)) (VP (VBV 言っ) (VP (MD た))))) (PERIOD 。))
彼 は 、 彼 が ホワイトハウス へ の 航空機 を 使っ た 将来 の 攻撃 で 役割 を 果たす 予定 だっ た と 言っ た 。
He said that he was to play a role in another future attack on the White House using an aircraft .