(S (S (PP-SBJ (NP (PP (BASENP (NN それら)) (IN の)) (BASENP (NN 改正) (NN 案))) (IN は)) (VP (PP (BASENP (NN ４) (NN か月) (NN 以内)) (IN に)) (VP (PP (BASENP (NN 国民) (NN 投票)) (IN で)) (VP (VP (NN 採決) (VBO さ)) (VP (VB れる)))))) (PERIOD 。))
それら の 改正 案 は 4 か月 以内 に 国民 投票 で 採決 さ れる 。
Those amendments would be voted on in a referendum within four months .