In the introduction it says "...the island is the westernmost permanently inhabited place in Scotland and in Great Britain." and the last link points to the page for the island of Great Britain. I think this is incorrect because Vatersay is not "in [the island of] Great Britain". It might be correct to replace the geographical term "Great Britain" by a political term, but I am unsure which political term this might be to meet the requirement of being "westernmost".
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