Task: Question Generation
Input (English): Passage: The Chiefs hosted the 5-5 Bills, losers of their past four games, on November 23. Tyler Thigpen had his first bad game in five outings in the Chiefs' 54-31 loss. Thigpen's three turnovers-two interceptions and one lost fumble-led to 20 points by the Bills. Despite the turnovers, Thigpen also threw for 240&#160;yards and three touchdowns. The 54 points by Buffalo were the Chiefs' most allowed in a game in the franchise's history. With the loss, the Chiefs fell to a 1-10 record, their 20th loss in 21 games.
Output (English): How many games out of 21 did the Chiefs lose?