In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Input: Consider Input: who avenged Chu'Tsai's forefathers?, Context: Genghis Khan realised that he needed people who could govern cities and states conquered by him. He also realised that such administrators could not be found among his Mongol people because they were nomads and thus had no experience governing cities. For this purpose Genghis Khan invited a Khitan prince, Chu'Tsai, who worked for the Jin and had been captured by the Mongol army after the Jin dynasty was defeated. Jin had captured power by displacing Khitan. Genghis told Chu'Tsai, who was a lineal descendant of Khitan rulers, that he had avenged Chu'Tsai's forefathers. Chu'Tsai responded that his father served the Jin dynasty honestly and so did he; also he did not consider his own father his enemy, so the question of revenge did not apply. This reply impressed Genghis Khan. Chu'Tsai administered parts of the Mongol Empire and became a confidant of the successive Mongol Khans.

Output: Genghis Khan

Input: Consider Input: what race is mentioned first?, Context: NASCAR (headquartered in Daytona Beach) begins all three of its major auto racing series in Florida at Daytona International Speedway in February, featuring the Daytona 500, and ends all three Series in November at Homestead-Miami Speedway. Daytona also has the Coke Zero 400 NASCAR race weekend around Independence Day in July. The 24 Hours of Daytona is one of the world's most prestigious endurance auto races. The Grand Prix of St. Petersburg and Grand Prix of Miami have held IndyCar races as well.

Output: Daytona 500

Input: Consider Input: What is a city that DFDS stopped serving during the last quarter of 2006?, Context: From Newcastle International Ferry Terminal, at North Shields, Danish DFDS Seaways run a service to IJmuiden (near Amsterdam). The DFDS ferry service to Gothenburg, Sweden, ceased at the end of October 2006 the company cited high fuel prices and new competition from low-cost air services as the cause and their service to Bergen and Stavanger, Norway was terminated late 2008. Since summer 2007, Thomson cruise lines have included Newcastle as a departure port on its Norwegian and Fjords cruise.
Output: Gothenburg