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 tall is Mount Weeks? Passage:According to the United States Census Bureau, the city has a total area of , of which is land and is water, comprising 1.35% of the city. Berlin is situated at the confluence of the Androscoggin and Dead rivers. The Mahoosuc Range is to the southeast. Jericho Mountain State Park, created from a city park and from private land in 2005, is west of the city center and features a reservoir created in the 1970s and a network of ATV trails. The city's highest point is Mount Weeks, at above sea level. A prominent feature in the landscape of Berlin is Mount Forist, rising over the west side of the city. Approximately half of Berlin lies within the Connecticut River watershed, and half lies in the Androscoggin River watershed.

Ex Output:
a

Ex Input:
Question: What year was the treaty that opened up the Korean Peninsula to Japanese trade signed? Passage:Un'yo was one of the ships dispatched to Kyushu in 1874 during the Saga Rebellion. In May 1875, she carried diplomats to Busan in Korea in an attempt by the Japanese government to open diplomatic relations with the Joseon dynasty government. After they were rebuffed in these negotiations, the Japanese government again dispatched Un'yo in September 1875 under the command of Inoue Yoshika to provoke a military response, in what was later termed the Ganghwa Island incident. This eventually led to the Treaty of Ganghwa, which opened the Korean Peninsula to Japanese trade. In 1876, Un'yo was assigned to assist in the suppression of the Hagi Rebellion, another uprising of disaffected former samurai. Un'yo was severely damaged when she ran aground off the coast of the Kii Peninsula, and was scrapped the following year.

Ex Output:
b

Ex Input:
Question: Who had the highest quarterback rating of 1992? Passage:At the start of the 1992 season, Zolak also looked unlikely to appear, being behind Hodson and Millen on the depth chart. Millen started the first five games before being injured, and then Hodson became the starter. In early November, Zolak made his professional debut in the fourth quarter against the New Orleans Saints. Relieving Hodson, he completed five of nine passes and threw an interception as the Patriots lost, 3114. The next week, Zolak made his first career start when the still winless Patriots faced the Indianapolis Colts. He completed 20 of 29 passes for 261yards, two touchdowns, and an interception in the Patriots' first win of the season, 3734. As a result of his performance, he was named the American Football Conference (AFC) Player of the Week. The next week, Zolak led his team to their second victory of the season against the New York Jets. He completed seven of 16 passes for 102yards, getting help from Jon Vaughn who had 110 rushing yards, and the Patriots won, 243. However, the following week's performance against the Atlanta Falcons was less impressive. He completed nine of 16 passes for 58yards and two interceptions in the Patriots' losing effort, and he said it felt like he was "on a desert island by myself." After Zolak's performance against Atlanta, he lost the starting job, and Millen again filled that role. However, Millen suffered a shoulder injury against the Colts, and after Zolak played part of the game against Indianapolis, he again became the starter for the game against the Kansas City Chiefs. Zolak injured his ankle at the end of the third quarter, making the appearance against Kansas City his last for the season as Jeff Carlson took over quarterbacking duties. Zolak finished the season with 52 pass completions in 100 attempts, 561yards, two touchdowns, four interceptions, and a quarterback rating of 58.8.

Ex Output:
a