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

Example input: Test subjects will be administered either a placebo or PA-457 that will be taken in combination with the medication they already take.
Example output: 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.
Q: In 2009, scientists working with the cosmic dust analyzer examined some sodium salts found in ice grains of Saturn's E ring but the link to subsurface salt water was not definitive.
A:
２００９年に、宇宙塵分析器で研究をしていた科学者は土星のEリングの氷粒で見つかる多少のナトリウム塩類を調べたが、表面下の塩水との関係ははっきりしなかった。