(S (S (BASENP (NN 去年)) (COMMA 、) (S (SBAR (S (PP-SBJ (NP (NP (PP (BASENP (NN 彼女)) (IN の)) (NN 兄)) (BASENP (NNP ザック))) (IN は)) (VP (PP (BASENP (NN １７) (NN 歳)) (IN で)) (VP (PP-OBJ (BASENP (NN 世界) (NN 一周)) (IN を)) (VP (NN 航海) (VBV し))))) (INTE て)) (S-NSBJ (VP (PP-OBJ (BASENP (NN 周航)) (IN を)) (VP (VBV 成し遂げ) (VP (MD た))))))) (PERIOD 。))
去年 、 彼女 の 兄 ザック は 17 歳 で 世界 一周 を 航海 し て 周航 を 成し遂げ た 。
Last year , her brother Zac had completed a circumnavigation when he sailed solo around the world at the age of seventeen .