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.

Example Input: Question: What team had the best record in the Latvian Higher League the year that Karlsons was the top scorer with 26 goals? Passage:As a youth player Karlsons played for his local club FK Liepājas Metalurgs, being taken to the first team in 1998, at the age of 17. He spent the next six seasons with the club, becoming the second top scorer of the Latvian Higher League in 2003 with 26 goals, completing two hat-tricks during the season. All in all he played 96 matches for his local club, scoring 40 goals. After these bright appearances he had impressed clubs abroad, and in January 2004 Karlsons went on a month-long trial with the Russian Premier League club Shinnik Yaroslavl. Afterwards he signed a three-year contract with them. However, his spell there wasn't as successful as expected and was very short. After just one season, during which he played only 8 league matches without scoring goals, Karlsons returned to the Latvian Higher League, signing with the newly promoted, ambitious club Venta Kuldiga in 2005. However, the club struggled financially and after just five matches had to let some of their players go, including Karlsons, who returned to his hometown club, Liepājas Metalurgs later that year. He spent the next three seasons there, once again showing great performance. He scored a hat-trick in the 2005 season, and he also scored in the Latvian Cup final on 25 September 2005, which Metalurgs lost 2–1 to Venta Kuldīga. Another hat-trick came in the 2006 season, which Karlsons finished as the second top scorer with 14 goals under his belt. In the Latvian Cup he scored a hat-trick in the 6–1 semi-final victory over Dižvanagi Rēzekne and then scored in the final, which the club won 2–1 over Skonto Riga. In December 2006 Karlsons was named the runner-up of the Latvian Player of the Year Award by the Latvian Football Federation behind the winner Aleksandrs Koļinko, who that time was the first-choice keeper for Rubin Kazan in the Russian Premier League. His contract with Metalurgs expired in July 2007 and it was not renewed. Player was then linked with the English Championship club Bristol City, before going on trial with Southampton. In January 2008 he had a two-day trial with Wolverhampton Wanderers. Karlsons then had trials in the Netherlands with Zwolle and De Graafschap,

Example Output: a

Example Input: Question: Is the club Charles played against in 1883 still active? Passage:Educated at Wellington College and later attending Trinity Hall, Cambridge, Willock made a single first-class appearance for Cambridge University against the Marylebone Cricket Club at Fenner's in 1883. He was dismissed in Cambridge University's first-innings of 100 for a duck by Wilfred Flowers, while in the Marylebone Cricket Club's first-innings of 159 he took the wickets of Billy Gunn and Percy de Paravicini to finish with figures of 2/18 from 28 overs. In the University's second-innings of 65, he was once again dismissed for a duck by Flowers, while in the Marylebone Cricket Club's successful chase, he dismissed Gunn for a second time. Later that season he made a single first-class appearance for Sussex against Hamshire at Day's Antelope Ground. In Hampshire's first-innings of 110, he bowled ten wicketless overs which conceded 5 runs, while he ended Sussex's first-innings of 94 unbeaten on 8. In Hampshire's second-innings of 180, he bowled five wicketless overs which conceded 9 runs. In Sussex's second-innings of 165, he was dismissed for 6 runs by William Dible, with Hampshire winning the match by 31 runs.

Example Output: b

Example Input: Question: How long had David Stern been Commissioner of the NBA for the year Fryer retired from his position as referee? Passage:After retiring as a player, Fryer embarked upon a lengthy career as an NBA referee, beginning in 1978. As of the beginning of the 2006–07 NBA season, he officiated 1,649 regular season, 145 playoff, and 11 NBA Finals games as well as the 1998 All-Star Game. He was also one of three former NBA players (Leon Wood and Haywoode Workman) who officiated in the league. During a 2002 playoff game between the Charlotte Hornets and Orlando Magic, Fryer and his officiating crew disallowed a field goal made by the Hornets Baron Davis. Davis received an inbound pass with 0.7 seconds remaining and successfully made the shot before the buzzer sounded. This incident led Commissioner David Stern to consider the use of instant replay in NBA games. Considered one of the top-rated referees in the league, he retired in 2007 following Game 3 of the 2007 NBA Finals having officiated 1,806 NBA games. It was reported that Fryer was dissatisfied over the current state of management of officials.

Example Output:
b