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.

Input: Consider Input: Question: What year was the treaty that opened up the Korean Peninsula to Japanese trade signed? Passage:Un'yō  was one of the ships dispatched to Kyūshū 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'yō 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'yō  was assigned to assist in the suppression of the Hagi Rebellion, another uprising of disaffected former samurai. Un'yō  was severely damaged when she ran aground off the coast of the Kii Peninsula, and was scrapped the following year.


Output: b


Input: Consider Input: Question: In what country is the Nikos Kazantzakis Stadium located? Passage:The «Nikos Kazantzakis» Stadium (), formerly known as Ergotelis Stadium and more commonly as Martinengo Stadium, is a football stadium located on the Martinengo bastion, part of the fortifications of Heraklion, on the island of Crete. It is named after Modern Greek literature giant Nikos Kazantzakis, whose grave is also located on the same bastion. It is part of the Ergotelis Athletic Centre, a sport facilities complex owned by Greek multi-sport club Ergotelis. Built in 1946, as Ergotelis Stadium (), it was the traditional home ground of Greek football club Ergotelis until 2004, when the club moved to the Pankritio Stadium, Heraklion's largest and most modern sports venue. The complex currently houses the Ergotelis Youth Academy, the largest youth sports academy on the island of Crete, and one of the largest in Greece, while the stadium itself is still used as the home ground of multiple Heraklion football clubs playing in the Heraklion Football Clubs Association amateur league system. It has a capacity of about 1,000 spectators, of which approximately 600 can be seated.


Output: b


Input: Consider Input: Question: Which cut made the band who wrote the song that Greil Marcus rated as one of three masterpieces more money, "A Man I'll Never Be" or "More Than a Feeling"? Passage:Billboard Magazine rated the song one of the best cuts on Don't Look Back. Greil Marcus rated the song as one of three masterpieces on Don't Look Back, along with "A Man I'll Never Be" and "Used to Bad News." Allmusic critic Tim Sendra described its riff as "killer," saying that it was similar to that in "More Than a Feeling." The New Rolling Stone Album Guide critic Paul Evans felt that "Don't Look Back" was the one song on its album that could "hold its own" on Boston's first album. Ultimate Classic Rock critic Eduardo Rivadavia similarly stated that it "met every expectation set by Boston’s nearly perfect debut." Ultimate Classic Rock critic Michael Gallucci rated it the band's 4th all time best song. AXS contributor Bill Craig similarly rated it Boston's 3rd greatest song, describing it as an "arena rock style sonic blast." Philip Booth of the Lakeland Ledger called it one "of the most-played-by-garage-band rockers of the '70s." Pete Prown and Harvey P. Newquist praised the "layers of guitar harmonies" as well as Barry Goudreau's slide guitar playing and rideout guitar solo. Ottawa Journal critic Mike Voslin rated the song as a live performance highlight.



Output: a