In this task, given a sentence in the English language, your task is to convert it into the Japanese language.

Let me give you an example: Test subjects will be administered either a placebo or PA-457 that will be taken in combination with the medication they already take.
The answer to this example can be: 被験者は、彼らがすでに服用している薬剤と一緒に偽薬またはPA-457を与えられる。
Here is why: The above sentence is correctly translated from English to Japanese.

OK. solve this:
The essence of judicial reform is judicial fairness, which is crucial to the country's rule of law," Xiao Yang said back then.
Answer:
「司法制度改革の本質は司法の公平性であり、それは国の法の支配においてきわめて重要だ」と肖揚氏は当時語っている。