You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, given a sentence in the English language, your task is to convert it into the Japanese language.

Test subjects will be administered either a placebo or PA-457 that will be taken in combination with the medication they already take.
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。
Why? The above sentence is correctly translated from English to Japanese.

New input: "There was clear evidence of vigor and enthusiasm among political parties as they conducted their campaigns," said the South African Development Community (SADC), which sent 98 observers to oversee the elections.
Solution:
「彼らが選挙運動を実施したように、政党間に活力と熱意の明確な証拠があった」と選挙を監視するために98人の監視員を送った南アフリカ開発共同体（SADC)は述べた。