TASK DEFINITION: In this task, you are given a sentence in the Japanese language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
PROBLEM: 輪の特徴のうちいくつかは土星の月によって引き起こされたと知られているが、他の輪については説明がつかない。

SOLUTION: Some of the ring features are known to be caused by Saturn's moons, but others are harder to explain.

PROBLEM: 裕福な国々は、取引を開始するのと引き換えにあまりにも多くの譲歩を要求するとして非難されており、一方で、彼らは、貧しい国々は進行を妨害することでその対価を要求するとする。

SOLUTION: Richer countries are being accused of demanding too many concessions in return for opening up trade and reducing subsidies while they say that the poorer countries are holding them to ransom by blocking progress.

PROBLEM: MDCが勝ちかけた前回の選挙は暴力および票の不正操作の類似の申し立てで、駄目になった。

SOLUTION:
The previous elections, which the MDC almost won, were marred by violence and similar allegations of vote-rigging.