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.
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Question: Question: How long had Jeffrey Ullman been teaching at Stanford the year Mairson got his B.A.? Passage:Mairson received a B.A. in Mathematics from Yale University in 1978 and a Ph.D. in Computer Science from Stanford University in 1984 under the supervision of Jeffrey Ullman. His Ph.D. thesis, The Program Complexity of Searching a Table, won the Machtey Award at the 1983 IEEE Symposium on Foundations of Computer Science (FOCS). Mairson was a Postdoctoral researcher at INRIA Rocqencourt from 1984 to 1985, at Stanford University in 1985, and at the University of Oxford in 1986. He held a Visiting Professor position from 1999 to 2001 at Boston University. From 2005 to 2007, Mairson has served as the Chair of the Faculty Senate at Brandeis. He is currently an Associate Editor of the journal Logical Methods in Computer Science and Information and Computation, and sits on the editorial board of Higher-Order and Symbolic Computation.


Answer: b


Question: Question: What other schools were members of the conference in which Kansas State competed in basketball in 2009-10? Passage:The 2009–10 Kansas State Wildcats men's basketball team represented Kansas State University in the 2009–10 NCAA Division I men's basketball season. The head coach was Frank Martin, who served his 3rd year at the helm of the Wildcats. The team played its home games in Bramlage Coliseum in Manhattan, Kansas. Kansas State is a member of the Big 12 Conference. The Wildcats began conference play with a trip to Columbia, Missouri and faced the Missouri Tigers and finished the year with a home game against the Iowa State Cyclones. They finished the season 29–8 and ranked #7 in the AP Poll and the ESPN/USA Today Coaches' Poll. They lost to the rival Kansas Jayhawks in the finals of the Big 12 Tournament, 72–64.


Answer: a


Question: Question: Did Hank Aaron ever play for the Reds? Passage:On June 18, 1967, Wilson no-hit the Atlanta Braves 2–0 at the Astrodome. The no-hitter was the first ever pitched either in a domed stadium or on artificial turf. Along the way, he struck out 15 batters, including Hank Aaron for the final out.(Audio) In the second game of a doubleheader against the Cincinnati Reds at Crosley Field on July 14, 1968, Wilson set the Astros club record for single-game strikeouts with 18. On May 1, 1969, the day after the Reds' Jim Maloney no-hit the Astros 10–0 at Crosley Field for his second career no-hitter, Wilson returned the favor and no-hit the Reds 4–0 for his second career no-hitter. (Audio) The back-to-back no-hit feat was only the second in MLB history, the first having been accomplished in September of just the year before by Gaylord Perry and Ray Washburn. This second no-hitter was vengeance for Wilson: in his previous start against the Reds nine days earlier, he had given up seven runs in five innings and was the losing pitcher in the Reds' 14–0 drubbing of the Astros at the Astrodome. That year, the Astros finished .500 (81-81) for the first time in club history, and Wilson struck out 235 batters (his career best) in 225 innings in fashioning a 16–12 record. That season, the Astros set what was then a big-league record for strikeouts in a season by a pitching staff. Two other Houston starters, Larry Dierker and Tom Griffin, also struck out at least 200 batters that season, with Dierker's 232 in 305 innings leading the way. The 1971 season saw Wilson make the National League All-Star Team as well as earn Astros MVP honors. Wilson's last game was a two-hit, 5–0 shutout against the Atlanta Braves on September 28, 1974.


Answer:
b