(S (S (PP-SBJ (NP (DT この) (NP (PP (BASENP (NN ３) (NN 歳)) (IN の)) (NP (ADJP (JJ 若い)) (BASENP (NN 雄) (NN 馬))))) (IN は)) (VP (PP-OBJ (NP (PP (SBAR (S-NSBJ (VP (PP-OBJ (NP (PP (NP (S-REL (PP (BASENP (NN ５) (NN 月) (NN ２０) (NN 日)) (IN に)) (S-NSBJ (VP (VP (NN 故障) (VBV し)) (VP (MD た))))) (BASENP (NN 右) (NN 脚))) (IN の)) (NP (PP (BASENP (NN ２つ)) (IN の)) (NN 関節))) (IN を)) (VB 繋げる))) (NN ため)) (IN の)) (BASENP (NN 緊急) (NN 手術))) (IN を)) (VP (VBV 受け) (VP (MD た))))) (PERIOD 。))
この ３ 歳 の 若い 雄 馬 は ５ 月 ２０ 日 に 故障 し た 右 脚 の ２つ の 関節 を 繋げる ため の 緊急 手術 を 受け た 。
The three-year-old colt underwent emergency surgery on May 20 to fuse two joints in the damaged right leg .