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: Which tribe was Chief Blackfish the Chief of? Passage:Little documentary evidence of Black Hoof's life appears in the historical record before 1795. As a child he may have been a member of a waundering band of some 400 Shawnees led by Peter Chartier between 1745 and 1748, who founded the community in Kentucky called Eskippakithiki and later moved to Sylacauga, Alabama, eventually settling in Old Shawneetown, Illinois. He probably took part in the Battle of Point Pleasant during Lord Dunmore's War against the Virginia militia in 1774. During the American Revolutionary War, he may have taken part in the siege of Boonesborough in 1778, which was led by Chief Blackfish, as well as the subsequent defense of the Shawnee village of Chillicothe in 1779. In the Northwest Indian War, Black Hoof was defeated by "Mad" Anthony Wayne and, following the collapse of the Indian confederation, surrendered in 1795.


Ex Output:
b


Ex Input:
Question: What city the place in that Morrey was employed as a mathematician during World War II? Passage:Morrey graduated from Ohio State University with a B.A. in 1927 and a M.A. in 1928, and then studied at Harvard University under the supervision of George Birkhoff, obtaining a Ph.D. in 1931 with a thesis entitled Invariant functions of Conservative Surface Transformations. After being awarded his Ph.D, he was a National Research Council Fellow at Princeton, at the Rice Institute and finally at the University of Chicago. He became a professor of mathematics at UC Berkeley in 1933, hired by Griffith Conrad Evans, and was a faculty member until his retirement in 1973. In Berkeley, he was early given several administrative duties, for example being the Chairman of the Department of Mathematics during the period 1949–1954, and being the Acting Chairman, the Vice Chairman and the Director of the Institute of Pure and Applied Mathematics at various times. During the years 1937–1938 and 1954–1955 he was a member of the Institute for Advanced Studies: he was also Visiting Assistant Professor at Northwestern University, Visiting Professor at the University of Chicago and Miller Research Professor at Berkeley. During World War II he was employed as a mathematician at the U.S. Ballistic Research Laboratory in Maryland.


Ex Output:
b


Ex Input:
Question: Who had more goals, Chiesa or the player he was fighting for a place with in his first season for La Viola? Passage:In 1999, he was signed by Fiorentina for 28 billion lire (€14.46 million), a team looking to expand and bring in better players, in an attempt to keep club captain and talisman Gabriel Batistuta. Despite making regular appearances in his first season for La Viola, Chiesa was fighting for a place with Predrag Mijatović among others, and also had spells where he was out of form, and in the end only managed 6 goals in the league. In the 2000–01 season, Batistuta left for Roma and Fiorentina were plagued with injuries and financial problems. Meanwhile, Chiesa became the main striker for the club under manager Roberto Mancini, supported by playmaker Rui Costa, and scored 22 goals in 30 matches, finishing amongst the top 5 highest scorers in the league and helping Fiorentina to win the 2000–01 Coppa Italia over his former club, Parma, in the final; in the second leg at home, he set up Nuno Gomes's goal in a 1–1 draw, which allowed Fiorentina to clinch the title 2–1 on aggregate. The 2001–02 campaign proved to be a very difficult one: Chiesa started the campaign off strongly, scoring five goals in the first five matches of the season, but was ruled out for the rest of the season after sustaining a serious injury to his knee ligaments against Venezia on matchday five; left without Chiesa to lead the club's attack, Fiorentina were ultimately relegated at the end of the season. As a result of Fiorentina's relegation and financial troubles, Chiesa subsequently moved to Lazio for the following season, where he however failed to play at his personal best.


Ex Output:

a