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.

Input: Consider Input: Question: Which place is older, Chernihiv or Lutsk? Passage:In 1180, Ingvar Yaroslavich joined Ryurik Rostislavich in his struggle against Sviatoslav Vsevolodovich of Chernihiv. According to the Tale of Igor's Campaign, Ingvar was a brave man, however, he never wanted to irritate his powerful neighbors. In 1183, for instance, Ingvar refused to accommodate Vladimir II Yaroslavich in Dorogobuzh, who had been banished from Halych. It appears that Ingvar was wary of Yaroslav Osmomysl, Vladimir Yaroslavich's father. Soon after this, Ingvar took the place of his older brother Vsevolod Yaroslavich as the ruler of Lutsk. In 1202, Ingvar was appointed ruler of Kiev instead of the ousted Ryurik Rostislavich in accordance with a deal between Roman Mstislavich of Halych and Vsevolod the Big Nest, Grand Prince of Vladimir. Ryurik, however, would regain Kiev that same year with the help of the Olgovichs and polovtsy. In 1204, Ingvar took part in capturing the city of Volodymyr-Volyns'kyi together with Alexander of Belz. He was appointed ruler of the city on the spot, but was soon replaced by Alexander due to boyars' discontent. In 1208–1211, Ingvar sent his son to assist Daniil Romanovich in his struggle against the sons of Igor Sviatoslavich of Novhorod-Siverskyi. In 1212, Ingvar and Mstislav Romanovich attacked Vsevolod Sviatoslavich and captured Kiev. After a battle near Belgorod Ingvar voluntarily ceded Kiev to Mstislav Romanovich and left for Lutsk. 


Output: b


Input: Consider Input: Question: Which other Dodger player who was intentionally walked in their debut played professional baseball for the shortest period of time? Passage:Bellinger started in left field in his major league debut on April 25, 2017, against the San Francisco Giants, and had one hit in three at-bats, with an intentional walk. He was just the third Dodgers player in history to be intentionally walked in his debut (Chico Fernández, Dick Nen). Bellinger's first major league hit was an infield single off Neil Ramírez in the ninth inning of the same game. Bellinger hit his first major league home run on April 29 off Zach Eflin of the Philadelphia Phillies and followed that by hitting a second home run in the same game, this one off Héctor Neris. He was just the third Dodgers player with a two–home-run game among his first five starts, joining Charlie Gilbert (1940) and Yasiel Puig (2013). He hit his first grand slam on May 6, off Miguel Díaz of the San Diego Padres, as part of a career-high five RBI day. He was the first Dodgers player to hit five home runs within his first 11 games. Bellinger was named the National League Player of the Week for the first week of May. With nine home runs in May, Bellinger moved into a three-way tie with Joc Pederson (May 2015) and James Loney (September 2007) for most home runs by a Dodgers rookie in a calendar month. He was named the National League Rookie of the Month for May.


Output: b


Input: Consider Input: Question: How old was Bruce Arena when he became manager of  D.C. United? Passage:Washington, D.C. was awarded an MLS franchise on June 15, 1994, which would play at RFK Memorial Stadium and later be named D.C. United. The league allocated U.S. defender Jeff Agoos, U.S. midfielder John Harkes, and Bolivian forwards Marco Etcheverry and Juan Berthy Suárez to D.C. United, which signed former University of Virginia Cavaliers coach Bruce Arena as its manager in January 1996. In the general player draft, D.C. was given the last pick and signed Salvadorian forward Raúl Díaz Arce in the first round, completing a trio of South American attackers, and several starting players in later rounds. With its two picks in the college draft, United selected defender Eddie Pope in the first round and midfielder Jesse Marsch in the third round; in the supplemental draft, D.C. used its single pick on Argentine midfielder Mario Gori.



Output: b