Mário Custódio Nazaré had a 15 day contract with the sports club based in what city?
Beşiktaş J.K.: Beşiktaş Jimnastik Kulübü (] , English: Beşiktaş Gymnastics Club ), known as simply Beşiktaş (pronounced: "Beshiktash"), is a Turkish sports club founded in 1903, and based in the Beşiktaş district of Istanbul.
i don't know