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Find a Wikipedia image that answers this question: What shape is at the center of the bottom of the Castro's sign?

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Represent the given Wikipedia image with related text information: Castro Theatre at Night IMG 4585  Castro Theatre at night, San Francisco.

['<|image_1|>\nRepresent the given Wikipedia image with related text information: San Francisco, Union Square (6) Union square San Francisco, California, USA.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: El Capitan Theater (3715406878).\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: W 46th St Duffy Square 07 - Bertelsmann Building The Bertelsmann Building (1540 Broadway), at 7th Avenue and 46th Street in Duffy Square, Times Square, Manhattan.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Los Angeles (California, USA), Hollywood Boulevard -- 2012 -- 5100 Bus for tourists at the Hollywood Boulevard in Los Angeles (California, USA).\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: ElCapitanTheater 01.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Macombs Dam Pk td (2019-03-15) 038 - Heritage Field Playground Heritage Field Playground within Macombs Dam Park, at Ruppert Place / Ruppert Plaza and 161st Street in Concourse, Bronx. The pictured playground castle is low to the ground and consists largely of ramps, allowing it to be wheelchair accessible.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Sanfrancisco unionsquare.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Capitol Burgers on Pico Blvd., Los Angeles  Capitol Burgers on Pico Blvd., Los Angeles Capitol Burgers on Pico Blvd., Los Angeles.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: San Francisco Pride Parade 20180624-4143 Members of the Resistance Contingent, holding signs reading "Pay Equality = LGBTQ Issues / National Center for Lesbian Rights" and "Choose [checkbox] Your Kids [checkbox] Your Guns", march in the 2018 San Francisco Pride Parade.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Hotel Castelar 2008 Buenos Aires.\n', '<|image_1|>\nRepresent the given Wikipedia image with related text information: Hollywood, Los Angeles, CA, USA - panoramio (29).\n']
['images/WebQA/Train/30351600.jpg', 'images/WebQA/Train/30202156.jpg', 'images/WebQA/Train/30274105.jpg', 'images/WebQA/Train/30283845.jpg', 'images/WebQA/Train/30369963.jpg', 'images/WebQA/Train/30064009.jpg', 'images/WebQA/Train/30272001.jpg', 'images/WebQA/Train/30341835.jpg', 'images/WebQA/Train/30087758.jpg', 'images/WebQA/Train/30346347.jpg', 'images/WebQA/Train/30016471.jpg']