In this task, given a sentence in the English language, your task is to convert it into the Japanese language.
Example: Test subjects will be administered either a placebo or PA-457 that will be taken in combination with the medication they already take.
Example solution: 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。
Example explanation: The above sentence is correctly translated from English to Japanese.

Problem: The DUP proposed that Speaker of the Assembly Eileen Bell should be the chairperson.

Solution: DUPは、議会議長のアイリーン・ベル氏が議長となるべきだと提案した。