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Find a Wikipedia image that answers this question: What color is the edge of Denver Union Station's Track 1 platform?

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Represent the given Wikipedia image with related text information: Track 1 platform, Denver Union Station  Track 1 platform, Denver Union Station.

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['images/WebQA/Train/30091781.jpg', 'images/WebQA/Train/30255268.jpg', 'images/WebQA/Train/30134280.jpg', 'images/WebQA/Train/30344443.jpg', 'images/WebQA/Train/30358377.jpg', 'images/WebQA/Train/30378988.jpg', 'images/WebQA/Train/30177837.jpg', 'images/WebQA/Train/30260495.jpg', 'images/WebQA/Train/30229035.jpg', 'images/WebQA/Train/30178476.jpg', 'images/WebQA/Train/30113999.jpg']