Task: Question Generation
Input (English): On December 3, 2013, Adidas officially confirmed a new shoe collaboration deal with West. After months of anticipation and rumors, West confirmed the release of the Adidas Yeezy Boosts with a Twitter announcement directing fans to the domain yeezy.supply. In 2015, West unveiled his Yeezy Season clothing line, premiering Season 1 in collaboration with Adidas early in the year. The release of the Yeezy Boosts and the full Adidas collaboration was showcased in New York City on February 12, 2015, with free streaming to 50 cinemas in 13 countries around the world. An initial release of the Adidas Yeezy Boosts was limited to 9000 pairs to be available only in New York City via the Adidas smartphone app; the Adidas Yeezy Boosts were sold out within 10 minutes. The shoes released worldwide on February 28, 2015, were limited to select boutique stores and the Adidas UK stores. He followed with Season 2 later that year at New York Fashion Week. On February 11, West premiered his Yeezy Season 3 clothing line at Madison Square Garden in conjunction with the previewing of his album The Life of Pablo.
Output (English): How many pairs of shoes were sold in the initial release in New York City?