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Find a Wikipedia image that answers this question: What does the sign with the red circle and white line at mid-level escalators mean?

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Represent the given Wikipedia image with related text information: HK Central Cochrane Street Central-Mid-Levels escalators Upsidedown.

['<|image_1|>\nRepresent the given Wikipedia image with related text information: Expedition Everest 29.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Patel Chowk entrance, 2008  The entrance to Patel Chowk metro station, on the Yellow Line of the Delhi Metro, India.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Spite house in Boston (36241p) Skinny House, a spite house in Boston.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: London 2341.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Eighth Avenue 46th Street jeh  Looking south on the west side of en:Eighth Avenue (Manhattan) from south of 47th Street on a cloudy June 2008 afternoon. Replaced March 2009 by File:8th Ave, Manhattan.jpg for the 8th Avenue article. ZIP 10036.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Vista de rodeo drive.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Hollywood Sign, Los Angeles, California The World Famous Hollywood Sign on top of the hill in Hollywood, Los Angeles, California photographed by http://www.DmitryRogozhin.com Certain commercial uses of the Hollywood Sign or its likeness are trademarked, see https://hollywoodchamber.net/hollywood-sign/.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Expedition Everest entrance.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Nssporthalloffame NS Sport Hall of Fame.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: AGO spiral staircase.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Gatech8th.png.\n']
['images/WebQA/Train/30208836.jpg', 'images/WebQA/Train/30178476.jpg', 'images/WebQA/Train/30051433.jpg', 'images/WebQA/Train/30070793.jpg', 'images/WebQA/Train/30326739.jpg', 'images/WebQA/Train/30250950.jpg', 'images/WebQA/Train/30112975.jpg', 'images/WebQA/Train/30343137.jpg', 'images/WebQA/Train/30358758.jpg', 'images/WebQA/Train/30334192.jpg', 'images/WebQA/Train/30209530.jpg']