In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Ex Input:
Question: How old was the person who chaired the AUKcon convention held in February 1994 in London? Passage:AUKcon was a one-day anime convention held in London, England, on 19 February 1994. The venue was the Conway Hall (Red Lion Square), and the registration charge was £10. AUKCon was chaired by Helen McCarthy. During the convention, Lawrence Guinness of Manga Video announced that the company had acquired distribution rights for Ranma 1/2 and planned to start releasing it in 1994. Also announced included plans for the series Bio Booster Armor Guyver. One of the guests that attended was Toren Smith, writer of the American Dirty Pair comic and founder of Studio Proteus. The convention was the first UK anime event to provide a fan room with free space for fanzines and fanclubs. It also ran a gaming programme and an art and model show, as well as anime screenings and talks. 


Ex Output:
b


Ex Input:
Question: When was the Great Fire of London?
 Passage:Bermondsey was historically a rural parish on the outskirts of London until the 17th century when the area began to be developed as a wealthy suburb following the Great Fire of London. By the 19th century, the once affluent parts of Bermondsey had experienced a serious decline, and became the site of notorious slums with the arrival of industrialisation, docks and migrant housing, especially along the riverside. The most notorious of the slums was known as Jacob's Island, with the boundary approximately the confluence of the Thames and subterranean River Neckinger, at St Saviour's Dock across from Shad Thames, to the west, a tidal ditch just west of George Row to the east, and another tidal ditch just north of London Street (now Wolseley Street) to the south. It was a particularly squalid rookery, and described as "The very capital of cholera" and "The Venice of drains" by The Morning Chronicle in 1849.


Ex Output:
b


Ex Input:
Question: What was the name of the fourth national park? Passage:The history of SR 123 begins with the establishment of the Pacific Forest Reserve in 1893, which became the Mount Rainier Forest Reserve on in 1897, both included the area near the present highway. The Mount Rainier National Park was established as the fifth national park on March 2, 1907. The Mount Rainier National Forest Reserve became the Rainier National Forest in 1907 and Columbia National Forest in 1908. In 1923, a renumbering and restructuring of the state highway system occurred and a branch of , later named the Cayuse Pass–Yakima branch, was added to the system. The northern terminus of the roadway at Cayuse Pass became (US 410) during the creation of the United States Numbered Highways. The Columbia National Forest replaced the Rainier National Forest in 1933. The branch of State Road 5 became the Cayuse Pass branch of (PSH 5) in 1937. Between 1946 and 1959, a ski resort operated at Cayuse Pass. In 1949, the Columbia National Forest was renamed to the Gifford Pinchot National Forest to honor a pioneer of the same name. During the 1964 highway renumbering, the Cayuse Pass branch of PSH 5 became , an auxiliary route of . SR 14 became on June 20, 1967 and SR 143 became SR 123, while US 410 became . Since 1974, the Washington State Department of Transportation (WSDOT) has recorded the opening and closing dates of Cayuse Pass. The only season when the pass was not closed was between 1976 and 1977. The earliest closure was on October 7, 1996 and the earliest opening was on March 30, 1992. The latest closure was on January 4, 1990 and the latest opening was June 21, 1996. After the Hanukkah Eve windstorm of 2006, a long segment of SR 123, which is only long, was washed out and need reconstruction. Construction started on June 21, 2007 and the road reopened on September 28, 2007.


Ex Output:

a