(S (S (PP (BASENP (NN 警察) (NN 当局)) (INP (IN に) (VB よる) (INCON と))) (COMMA 、) (S (SBAR (SBAR (S (ADVP (RB たとえ)) (S (S (PP-SBJ (BASENP (ADJP (NN 危険) (MDO な)) (NN 物質)) (IN が)) (VP (PP (BASENP (NN 飛行機)) (IN に)) (VP (VBO 見つから) (VP (MDV ず))))) (COMMA 、) (S (PP-SBJ (BASENP (NN 乗客)) (IN は)) (ADJP (PP (BASENP (ADJP (NN 危険) (MDO な)) (NN 状態)) (IN に)) (ADJP (JJV なかっ) (VP (MD た))))))) (INPH として)) (IN も)) (COMMA 、) (S (PP-SBJ (BASENP (NN 当局)) (IN は)) (VP (PP-OBJ (BASENP (NN 脅威)) (IN を)) (VP (ADVP (NN 深刻) (INRB に)) (VP (VBV 受け取っ) (VP (MD た)))))))) (PERIOD 。))
警察 当局 に よる と 、 たとえ 危険 な 物質 が 飛行機 に 見つから ず 、 乗客 は 危険 な 状態 に なかっ た として も 、 当局 は 脅威 を 深刻 に 受け取っ た 。
According to a police official authorities had taken the threat seriously , even though no dangerous substances had been found on board the plane , and passengers had not been in danger .