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Find a Wikipedia image that answers this question: Which mode of transportation was introduced in front of Portugal as they marched during the 2016 Olympic Games opening ceremony?

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Represent the given Wikipedia image with related text information: A scene from the Rio 2016 Olympic Games Opening Ceremony (28213125763).

['<|image_1|>\nRepresent the given Wikipedia image with related text information: Olympic torch arrives at Wembley Stadium, London, 1948. (7649950802).\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: KOCIS Sochi Winter Olympic Opening 18 (12446328485) Korea.net / Korean Culture and Information Service (Korean Olympic Committee).\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Australian Olympic Team Uniforms for Rio 2016  Australian Olympic Committee (AOC) Opening Ceremony Uniform Official Launch for Rio 2016, March 30, 2016. (left to right) Josh Dunkley-Smith, Louise Bawden, Kaarle McCulloch, Taliqua Clancy, Annette Edmondson, Ed Jenkins, Jessica Fox, Penny Taylor, Jamie Dwyer, Charlotte Caslick and Ken Wallace.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Olympic Torch Relay, Bangor (geograph 2975420) Olympic Torch Relay, Bangor.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: 2012 Olympics opening ceremony, Industrial Revolution scene.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: 1912 Opening ceremony - Netherlands.\n', "<|image_1|>\nRepresent the given Wikipedia image with related text information: Men's 200 metres event at the 2016 Summer Olympics, Olympic Stadium (Engenhão), Rio de Janeiro, Brazil (2) Men's 200 metres event at the 2016 Summer Olympics, Olympic Stadium (Engenhao), Rio de Janeiro, Brazil.\n", '<|image_1|>\nRepresent the given Wikipedia image with related text information: Candelária cauldron at 2016 Summer Olympics Olympic pyre at Rio downtown (Candelaria church behind) / Pira olimpica Rio 2016.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Opening ceremony, wikimania2017 (1) Opening ceremony, wikimania2017.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: 2020-01-14 Mascot Ceremony Ski mountaineering Mixed Relay (2020 Winter Youth Olympics) by Sandro Halank–012 Mascot ceremony at the Ski mountaineering Mixed Relay at the 2020 Winter Youth Olympics in Lausanne.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: 2012 torch relay day 67 Katy B and Mark Ronson with the Olympic Flame (7637437656).\n']
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