(S (S (SBAR (SBAR (S (PP-SBJ (BASENP (NNP ケビン) (NNP ・) (NNP ラッド) (NN 元) (NNP 首相)) (IN は)) (VP (PP (PP (BASENP (NN 選挙)) (IN まで)) (IN に)) (VP (PP-OBJ (NP (PP (BASENP (NN ３つ)) (IN の)) (BASENP (NN 討論) (NN 会))) (IN を)) (VB 行う)))) (NN ため)) (IN に)) (S-NSBJ (VP (VP (NN 尽力) (VBV し)) (VP (MD た))))) (PERIOD 。))
ケビン ・ ラッド 元 首相 は 選挙 まで に 3つ の 討論 会 を 行う ため に 尽力 し た 。
Former PM Kevin Rudd had committed to holding three debates before the election .