(S (S (PP-SBJ (NP (PP (BASENP (DT この) (NN 移行)) (IN の)) (NP (PP (BASENP (NN 最初)) (IN の)) (NN 期限))) (IN は)) (COMMA 、) (VP (NP (NP (S-REL-NSBJ (VP (PP (NP (NP (PP (PP (BASENP (NNP Ｌｉｎｕｘ)) (IN へ)) (IN の)) (NN 移行)) (NN 決定)) (IN と)) (VP (VBV なっ) (VP (MD た))))) (NP (PP (BASENP (NN ３) (NN 年) (NN 後)) (IN の)) (NN 今年))) (NN 開始)) (VP (MDV で) (VP (MDV あっ) (VP (MD た)))))) (PERIOD 。))
この 移行 の 最初 の 期限 は 、 Linux へ の 移行 決定 と なっ た 3 年 後 の 今年 開始 で あっ た 。
The migration was originally due to start this year , three years after the decision to migrate to Linux was made .