In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Input: Consider Input: Question: Who was the eldest of Liu's oath brothers? Passage:Liu Bei and his oath brothers Guan Yu and Zhang Fei swore allegiance to the Han Empire in the Oath of the Peach Garden and pledged to do their best for the people. However, their ambitions were not realised as they did not receive due recognition for helping to suppress the Yellow Turban Rebellion and participating in the campaign against Dong Zhuo. After Liu Bei succeeded Tao Qian as the governor of Xu Province, he offered shelter to Lü Bu, who had just been defeated by Cao Cao. However, Lü Bu betrayed his host, seized control of the province and attacked Liu Bei. Liu Bei combined forces with Cao Cao and defeated Lü Bu at the Battle of Xiapi. Liu Bei then followed Cao Cao back to the imperial capital, Xu, where Emperor Xian honoured him as his "Imperial Uncle". When Cao Cao showed signs that he wanted to usurp the throne, Emperor Xian wrote a secret decree in blood to his father-in-law, Dong Cheng, and ordered him to get rid of Cao. Dong Cheng secretly contacted Liu Bei and others and they planned to assassinate Cao Cao. However, the plot was leaked out and Cao Cao had Dong Cheng and the others arrested and executed along with their families.


Output: a


Input: Consider Input: Question: What age was Pastornicky's replacement in 2012? Passage:Following the conclusion of the 2011 season, Braves general manager Frank Wren highlighted several important areas to improve during the offseason. Since most players were committed contractually to the team in 2012, Wren acknowledged that he would likely make few major changes. One spot that was mentioned for a major overhaul was the shortstop position, where Alex González had played since the Yunel Escobar trade with Toronto in July 2010. González entered the offseason as a free agent and proved too expensive for the team. Wren ultimately allowed prospect Tyler Pastornicky the starting duties in 2012, until he was replaced by Andrelton Simmons in mid-June. When Simmons was hurt in July, Jack Wilson, Paul Janish, and Martín Prado filled in for him. While center fielder Michael Bourn returned to his position in 2012, Wren also suggested that the corner outfield positions were areas of contention. In 2011, the Atlanta outfielders finished the season last in the National League in on-base plus slugging and slugging percentage. Wren stated that right fielder Jason Heyward and left fielder Martín Prado had no guarantee of getting the starting jobs in 2012. On the day after the Braves were eliminated from the playoffs in 2011, Wren said that veteran starter Derek Lowe was unlikely to have a spot in the starting rotation in 2012, due his poor performance in 2011 and a plethora of rookie pitching talent in the Braves farm system. With Lowe guaranteed $15 million in 2012, Wren projected that any of Lowe's salary picked up by another team would significantly assist his efforts to find a shortstop or outfielder. By the end of October, Lowe was traded to the Indians.


Output: b


Input: Consider Input: Question: What year did Escobar start playing professional baseball? Passage:The Royals drew first blood in a back-and-forth opener that featured high offensive output from both teams. After hitting just three home runs in the regular season, Alcides Escobar hit a one-out homer to left to give the Royals a 1–0 lead. Later in the inning, with the bases loaded, Alex Gordon hit a broken bat, looping fly ball that dropped just fair inside the right-field line to plate all three runners. Suddenly, it was 4–0 Kansas City. Baltimore got a run back in the bottom of the inning on Adam Jones' RBI-single, but it could have been more had it not been for a great diving catch by Gordon in the left-center field gap, robbing Steven Pearce of a hit. In the bottom of the fifth, after the Royals added a run in the top of the frame, the Orioles finally got to James Shields. Nelson Cruz added to his postseason legacy with an RBI-double and Ryan Flaherty delivered a two-run single to make it a one-run game, 5–4. In the sixth, after a walk to Jonathan Schoop and a flare single to right by Nick Markakis, Alejandro De Aza hit a high chopper past the pitcher's mound that shortstop Escobar had no play on; Schoop scored to tie the game. Jones hit what appeared to be a double play ball, but Mike Moustaskas' relay throw short-hopped first baseman Eric Hosmer and the inning continued to bring up Cruz. He could not deliver the big hit this time as he rolled into an inning-ending double play.



Output: b