Input (grade 13): The Outer Hebrides, (officially known for local government purposes by the Gaelic name, Eilean Siar) comprise an island chain off the west coast of Scotland.
Output (grade 12): The Western Isles are sometimesw calles Outer Hebrides, (officially known by the Gaelic name, Na h-Eileanan Siar) comprise an island chain off the west coast of Scotland.