TASK DEFINITION: In this task, you are given a sentence in the English language and your task is to convert it into the Japanese language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
PROBLEM: All of these races were won with Mexican jockey Mario Gutierrez.

SOLUTION: これらのレースの全ては、メキシコの騎手マリオ・グーティエレズにより勝利した。

PROBLEM: The attack also comes amidst rumors that the Chinese government will be cracking down on social media commentators, according the The Wall Street Journal.

SOLUTION: ウォールストリートジャーナルによって、中国政府が報道解説者を厳しく取り締まると噂も広まっている中で、この攻撃が起こった。

PROBLEM: Colonel Ali also stated two policemen and a soldier were killed.

SOLUTION:
アリ大佐は警察官2名と兵士1名が殺害されたとも語った。