A woman carries her disguised dog during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)

Associated Press
A woman carries her disguised dog during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
A woman carries her disguised dog during the "Blocao" dog carnival parade in Rio de Janeiro, Brazil, Sunday, Feb. 3, 2013. According to Rio's tourism office, Rio's street Carnival this year will consist of 492 block parties, attended by an estimated five million Carnival enthusiasts. (AP Photo/Silvia Izquierdo)
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