In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Q: The Royal Institute of International Affairs , commonly known as Chatham House , is a not-for-profit and non-governmental organisation based in London whose mission is to analyse and promote the understanding of major international issues and current affairs .

A: Chatham House , also known as the Royal Institute of International Affairs , is a London think tank .
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Q: In later life , according to his official biographer Philip Ziegler , at dinner parties Heath was " apt to relapse into morose silence or completely ignore the woman next to him and talk across her to the nearest man " ; others at the time claimed Heath was just not talkative at parties .

A: In later life , according to his official biographer Philip Ziegler , Heath was " apt to relapse into morose silence or completely ignore the woman next to him and talk across her to the nearest man " .
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Q: The game was highly praised by critics ; IGN 's Craig Harris said that " Golden Sun " could " arguably be one of the best 2D-based Japanese RPGs created for any system . "

A:
IGN 's Craig Harris said " Golden Sun " " is the best game in all 2D-based Japanese RPG " .
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