Given the task definition, example input & output, solve the new input case.
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.
Example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
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Output: b
The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.

New input case for you: Question: Who is the oldest player whose contract expired in early 2011? Passage:In early 2011, the contracts of three young FC Spartak Moscow players (Maksim Grigoryev, Dmitri Malyaka and Yevgeni Filippov) expired, and they decided to switch to FC Rostov. According to Russian football regulations, when a player under 23 years of age who was raised in the club system transfers to a different club after his contract expires, his old club is due compensation from his new club. If the new club plays on the third level (Russian Second Division), the compensation is the player's 5 previous years' salary multiplied by 1, if his new club is in the National League Championship, it's multiplied by 2 and if it's a Russian Premier League club, it's multiplied by 3. The three players signed with a Russian Second Division team FC MITOS Novocherkassk who immediately loaned them to the Russian Premier League team FC Rostov. Spartak lodged a complaint with the Russian Football Union, claiming this was not a fair transfer as the only reason for it was to lower the compensation that FC Rostov was due to pay Spartak. After the protest was declined on 29 March 2011, Grigoryev was registered for FC Rostov and scored a goal on his debut against FC Lokomotiv Moscow on 2 April 2011, the game ended with a score of 11. FC Lokomotiv's president, Olga Smorodskaya, filed a complaint with the Russian Football Union and Premier League, claiming Grigoryev was not eligible to be registered and play for FC Rostov. Before the protest was heard, Grigoryev scored a goal in Rostov's 2-1 victory over FC Dynamo Moscow in the 201011 Russian Cup quarterfinal. The protest was heard by the RFU's Dispute Resolution Chamber on 21 April 2011. Smorodskaya insisted that FC MITOS did not have the transfer certificate from Spartak in their possession before the transfer deadline and therefore could not have legally registered Grigoryev. The protest was declined as, according to the league, Grigoryev et al. were registered with RFPL before the transfer deadline, even though they were not included on the official rosters on the league's website or in any other sources. The official league website actually still lists the date of their registration as 1 April. In another twist, in January 2012, Lokomotiv signed Grigoryev from FC MITOS. In March 2012, Court of Arbitration for Sport began considering Grigoryev's case. CAS made their decision in May 2012, denying Lokomotiv's appeal.

Output:
a