Question: In which competition held in Buenos Aires, Argentina did Stanly Stanczyk win a gold medal?
Sentence (from "1950 FIBA World Championship"): The 1950 FIBA World Championship (also called the 1st World Basketball Championship – 1950) was an international basketball tournament held by the International Basketball Federation in Buenos Aires, Argentina, from October 22 to November 3, 1950.
Relevant evidence: No