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Find a Wikipedia image that answers this question: What is the visual difference between the C stock and S stock trains that are used in the London transit system?

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Represent the given Wikipedia image with related text information: Old and New trains, Hammersmith station C stock train and new S7 stock train at Hammersmith Station, July 2013.

['<|image_1|>\nRepresent the given Wikipedia image with related text information: Subway Closure Night 3 - Coney Island Terminal (49870626167).\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Splendid old routemaster in Great Tower Street - geograph.org.uk - 1714051 Splendid old routemaster in Great Tower Street.\n', "<|image_1|>\nRepresent the given Wikipedia image with related text information: King's Cross, London, October 2016 (01)  King's Cross Station, London, England, October 2016.\n", '<|image_1|>\nRepresent the given Wikipedia image with related text information: Hogwarts Express (23560462632).\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Carnaby Street Christmas 1 en:Carnaby Street, en:London at Christmas.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Union TTC platform 2009  View of Union subway station in Toronto. This is in 2009, but construction of another platform may change things radically.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Camden Lock railway bridge in December 2011  The Camden Lock railway bridge, across Chalk Farm Road, Camden (borough), London, in December 2011.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Fenchurch St station from Coopers Row 02.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Graffiti in London Some graffiti in a skate park near the Royal Festival Hall in Southbank Centre, London.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: R62A 42 St Shuttle An ad-wrapped train of three cars on the 42nd Street Shuttle.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Pittsburgh Light Rail Siemens SD-400 leaving First Avenue Station Siemens SD-400 rolling stock of the Pittsburgh Light Rail heading northbound leaving First Avenue Station.\n']
['images/WebQA/Train/30048166.jpg', 'images/WebQA/Train/30317121.jpg', 'images/WebQA/Train/30279618.jpg', 'images/WebQA/Train/30323962.jpg', 'images/WebQA/Train/30345686.jpg', 'images/WebQA/Train/30272713.jpg', 'images/WebQA/Train/30306610.jpg', 'images/WebQA/Train/30312510.jpg', 'images/WebQA/Train/30259896.jpg', 'images/WebQA/Train/30082629.jpg', 'images/WebQA/Train/30137552.jpg']