Input: Article: Stout and porter are dark beers made using roasted malts or roast barley, and typically brewed with slow fermenting yeast. There are a number of variations including Baltic porter, dry stout, and Imperial stout. The name Porter was first used in 1721 to describe a dark brown beer popular with the street and river porters of London. This same beer later also became known as stout, though the word stout had been used as early as 1677. The history and development of stout and porter are intertwined.

Now answer this question: What type of yeast is used to make stout and porter beers?

Output: slow fermenting yeast

Input: Article: Association football is the country's most popular and most televised franchised sport. Its important venues in Mexico City include the Azteca Stadium, home to the Mexico national football team and giants America, which can seat 91,653 fans, making it the biggest stadium in Latin America. The Olympic Stadium in Ciudad Universitaria is home to the football club giants Universidad Nacional, with a seating capacity of over 52,000. The Estadio Azul, which seats 33,042 fans, is near the World Trade Center Mexico City in the Nochebuena neighborhood, and is home to the giants Cruz Azul. The three teams are based in Mexico City and play in the First Division; they are also part, with Guadalajara-based giants Club Deportivo Guadalajara, of Mexico's traditional "Big Four" (though recent years have tended to erode the teams' leading status at least in standings). The country hosted the FIFA World Cup in 1970 and 1986, and Azteca Stadium is the first stadium in World Cup history to host the final twice.

Now answer this question: What division are the Mexico City soccer teams in?

Output: First

Input: Article: Following a custom she maintained throughout her widowhood, Victoria spent the Christmas of 1900 at Osborne House on the Isle of Wight. Rheumatism in her legs had rendered her lame, and her eyesight was clouded by cataracts. Through early January, she felt "weak and unwell", and by mid-January she was "drowsy ... dazed, [and] confused". She died on Tuesday, 22 January 1901, at half past six in the evening, at the age of 81. Her son and successor King Edward VII, and her eldest grandson, Emperor Wilhelm II of Germany, were at her deathbed. Her favourite pet Pomeranian, Turri, was laid upon her deathbed as a last request.

Now answer this question: What had caused Victoria to be lame?

Output:
Rheumatism in her legs