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Find a Wikipedia image that answers this question: What are the two primary paint colors used on the San Francisco Municipal trolleybus?

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Represent the given Wikipedia image with related text information: San Francisco Muni St Louis-built trolleybus 506 on display in 2012.

['<|image_1|>\nRepresent the given Wikipedia image with related text information: SFCityHallDomeInterior  Interior of dome of San Francisco City Hall. Image by en:User:Leonard G.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Castro Street SF cropped.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Civic Center, San Francisco, CA 94102, USA - panoramio (1).\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: SFCityHallStairRail Stair rail at San Francisco City Hall.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Castro Street with Rainbow Ped Crossing.\n', "<|image_1|>\nRepresent the given Wikipedia image with related text information: Big Bus Company 10-5-07 The Big Bus Company bus HD939 (reg. G939 FVX), a 1989 Dennis Condor double-decker with Duple Metsec W bodywork, pictured at Cannon Street in the City of London operating one of the company's sightseeing tours.\n", '<|image_1|>\nRepresent the given Wikipedia image with related text information: Ida B Wells High School San Francisco January 2013 001.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Tadich Grill, San Francisco, California - Stierch Tadich Grill, San Francisco, California.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Lombard Street, San francisco (aug 2010).\n', "<|image_1|>\nRepresent the given Wikipedia image with related text information: Union Square, SF from Macy's 1.\n", '<|image_1|>\nRepresent the given Wikipedia image with related text information: Inbound T Third Street train at Castro station, August 2013 An inbound T Third Street train at Castro station in August 2013.\n']
['images/WebQA/Train/30217679.jpg', 'images/WebQA/Train/30291656.jpg', 'images/WebQA/Train/30277169.jpg', 'images/WebQA/Train/30312107.jpg', 'images/WebQA/Train/30068560.jpg', 'images/WebQA/Train/30068552.jpg', 'images/WebQA/Train/30052603.jpg', 'images/WebQA/Train/30175333.jpg', 'images/WebQA/Train/30111790.jpg', 'images/WebQA/Train/30282572.jpg', 'images/WebQA/Train/30378903.jpg']