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

Now, solve this: "We don't know whether they knew the people were there or not so we're appealing for anyone who might have witnessed the incident or knows anything about a low-flying crop-duster in the area to contact police," she said.
Solution:
「人々がそこにいたことを彼らが知っていたかどうか知りませんから、その事件を目撃したか、その地域での低空飛行の農薬散布飛行機について何か知っている人がいたら警察に連絡してくれるように訴えています」と彼女は言った。