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 city is the largest - the city near junction K, or the city near junction A? Passage:Belgrade marshalling yard () or Makis railway station (), or Makis 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 Makis in Cukarica of Belgrade. The railroad continues to Ostruznica in one line via park A, in the other direction to Ostruznica via park B, in third direction to Resnik via junction B near Zeleznik 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 Knezevac, 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.

Output: a

Input: Consider Input: Question: Which of the two cities in New Jersey where Pasternak moved receiving his B.S. degree had the largest population in 2010? Passage:Pasternak was born to a Jewish family in Manhattan. His father was born in Austria and fled the Nazis immigrating first to Israel and then the United States in 1951 after a stint in the British Army. His mother was born in Belgium to a Polish Jewish family who was hidden from the Nazis by a Catholic institution for six years; her entire family perished in the Holocaust. His parents met at a resort in the Catskills and settled in nearby Fleischmanns, New York; his father owned a gas station where he also worked as a mechanic and sold used cars. Pasternak received his high school diploma in 1972 from Margaretville Central School and received a B.S. degree in education from The State University of New York at New Paltz in 1977. He moved to Ridgewood, New Jersey where he renovated a home and then moved to Jersey City, New Jersey which at the time was hotbed of stock trading, an industry that he sought to enter.

Output: b

Input: Consider Input: Question: Of the teams Macon played for, which is the oldest? Passage:Macon was drafted in the second round (twentieth selection) of the 1952 NFL Draft by the Chicago Bears and became the first African-American player on the team; he spent two years as a halfback and return specialist. He was the second African-American to be drafted by the Bears; the first, George Taliaferro, was drafted by them in 1949, but chose to play in the All-America Football Conference. With the Bears, Macon rushed for 324 yards and two touchdowns on 70 attempts while catching 14 passes for 49 yards and two touchdowns. On 22 kick returns, he averaged 30.5 yards per return and 5.9 yards on 24 punt returns. He left the Bears in 1954 to play for the Calgary Stampeders of the Canadian Football League. Bears coach and owner George Halas was not pleased about his departure, blackballing Macon and suing him for $100,000. As a result, the Bears refused to acknowledge Macon being on the team. After being out of football for two years, which he spent as a longshoreman, Macon joined the Hamilton Tiger-Cats in 1957 before leaving in 1959 to resume his longshoreman career, but later joined the Oakland Raiders of the American Football League in 1960. With the Raiders, Macon was converted to defensive back, and was tied for second in the league with nine interceptions, which earned him All-Pro honors.
Output: b