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.

Ex Input:
Question: Which city is the largest  -  the city near junction K, or the city near junction A? Passage:Belgrade marshalling yard () or Makiš railway station (), or Makiš freight station, is a classification yard of the Belgrade railway junction and the largest railway station in Serbia. It is located in the neighbourhood of Makiš in Čukarica of Belgrade. The railroad continues to Ostružnica in one line via park A, in the other direction to Ostružnica via park B, in third direction to Resnik via junction B near Železnik and junction K of Belgrade railway junction near Petlovo Brdo, in fourth direction to Resnik via junction R in the tunnel below Vidikovac and junction A near Kneževac, in the fifth direction to Rakovica via park B and junction R, in the sixth direction to Rakovica via park A and junction T, in the seventh direction to Rakovica via park B and junction T per second line and the eight towards direction to Jajinci. Belgrade marshalling yard consists of 120 railway tracks.


Ex Output:
a


Ex Input:
Question: Which tribe was Chief Blackfish the Chief of? Passage:Little documentary evidence of Black Hoof's life appears in the historical record before 1795. As a child he may have been a member of a waundering band of some 400 Shawnees led by Peter Chartier between 1745 and 1748, who founded the community in Kentucky called Eskippakithiki and later moved to Sylacauga, Alabama, eventually settling in Old Shawneetown, Illinois. He probably took part in the Battle of Point Pleasant during Lord Dunmore's War against the Virginia militia in 1774. During the American Revolutionary War, he may have taken part in the siege of Boonesborough in 1778, which was led by Chief Blackfish, as well as the subsequent defense of the Shawnee village of Chillicothe in 1779. In the Northwest Indian War, Black Hoof was defeated by "Mad" Anthony Wayne and, following the collapse of the Indian confederation, surrendered in 1795.


Ex Output:
b


Ex Input:
Question: When was the person born whom Smith co-founded a fan club for? Passage:Smith was born and raised in Brooklyn, New York. He became a wrestling fan in the late 1950s. A childhood friend claimed that they were the first wrestling fans to bring signs to local World Wide Wrestling Federation house shows. Around 1971, Smith also co-founded an unofficial fan club for Freddie Blassie with members wearing homemade "Blassie's Army" T-shirts. As a teenager, Smith had an altercation with Kevin Sullivan while attending a live event at Sunnyside Gardens. Sullivan had been hit with an unknown object at the end of his bout against Davey O'Hannon. Smith, who often cheered for the "heel" wrestlers, had been heckling Sullivan (then a "babyface") throughout the night causing the wrestler to believe that Smith was responsible. The young wrestling fan was brought to the dressing room by building security after the match where he was confronted by Sullivan, Gorilla Monsoon and Arnold Skaaland. Smith denied any wrongdoing and was allowed to leave. Smith continued watching wrestling after moving to Knoxville, Tennessee in the mid-1970s. He eventually met Norvell Austin at a Southeastern Championship Wrestling. Austin later introduced Smith to Rick Conner who agreed to train him.


Ex Output:

b