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 Input: Question: Which school charged more to attend the year Larson got her B.A., Columbia University or Southern Illinois University? Passage:Henrietta Melia Larson was born in Ostrander, Minnesota on 24 September 1894, sister of Agnes Larson. She received her B.A. from St. Olaf College in 1918 and taught one year of high school before she became an instructor at Augustana College in 1921–22. She studied at the University of Minnesota in 1922–24, then taught at Bethany College from 1925 to 1926. Larson received her Ph.D. from Columbia University and The Wheat Market and the Farmer in Minnesota, 1858–1900 in 1926. She then taught at Southern Illinois University in 1926–28 before she became a research associate at the Harvard University Graduate School of Business Administration in 1928. Together with N. S. B. Gras, she wrote Jay Cooke, Private Banker in 1936 and she was the editor of the Bulletin of the Business Historical Society in 1938. They compiled the Casebook in American Business History in 1939 and Larson was promoted to assistant professor that same year. She became the first woman to be appointed associate professor in the Graduate School of Business in 1942. Six years later, she wrote the Guide to Business History with Kenneth Wiggins Porter and she became associate editor of the Harvard Studies in Business History and then editor two years later. Larson was the senior author of the History of Humble Oil and Refining Company and History of Standard Oil Company (New Jersey), Vol. 3: New Horizons, 1927–1950, together with Evelyn H. Knowlton and Charles S. Popple. She was appointed professor of business history in 1960 and retired the following year. Larson died on 25 August 1983.

Example Output: a

Example Input: Question: How old was the person who escaped to Africa when Cleopatra ascended to the throne? Passage:Caesar crossed the Rubicon accompanied by the XIII Legion to take power from the senate in the same way that Sulla had done in the past. Formally declared an enemy of the state, Caesar pursued the Senatorial party, now led by Pompey, who abandoned the city to raise arms in Greece. Cato was sent to Sicily to secure control of the grain supply. After securing control of Italy, Caesar sent the praetor Curio with four legions to Sicily. Cato's garrison was insufficient to withstand a force of this magnitude, he abandoned the island and went to Greece to join Pompey. After first reducing Caesar's army at the siege battle of Dyrrhachium, where Cato commanded the port, the army led by Pompey was ultimately defeated by Caesar in the Battle of Pharsalus (Cato wasn't present during the battle, Pompey had left him in command of Dyrrhachium). Cato and Metellus Scipio, however, did not concede defeat and escaped to the province of Africa with fifteen cohorts to continue resistance from Utica. Caesar pursued Cato and Metellus Scipio after installing the queen Cleopatra VII on the throne of Egypt, and in February 46 BC the outnumbered Caesarian legions defeated the army led by Metellus Scipio at the Battle of Thapsus. Acting against his usual strategy of clemency, Caesar did not accept surrender of Scipio's troops, but had them all slaughtered.

Example Output: a

Example Input: Question: What was the name of the wife of Mitorpetrovas's friend? Passage:He was born in 1745 in Melpeia of Messinia. He developed an early anti-Ottoman activity and in 1770 he participated in the Orlov Revolt. He was a friend of Theodoros Kolokotronis father, Konstantinos. Later, he participated in the preparation of the Greek War of Independence in Messenia and when that begun, he was at the side of Theodoros Kolokotronis, whom he followed in the military operations in Arcadia. Despite his advanced age, he participated in the Battle of Valtetsi in May 1821 as the head of the fighters of Androusa and Leontari. Positioned on the western bastion of the Greek camp together with Ioannis Mavromichalis, P. Kefalas and Dimitrios Papatsonis, he was distinguished for the repulse of the repeated attacks of the Ottoman cavalry. Later he participated in the siege and conquest of Tripolitsa. In 1822, he participated in the operations against the expeditionary force of Mahmud Dramali Pasha. For his contribution, he was named a chiliarch in 1823. During the Greek civil wars of 1824–25, he supported Kolokotronis's side and for that, he was arrested and jailed by the government forces of the Georgios Kountouriotis in the monastery of Prophet Elias on Hydra Island. Soon after his release in May 1825, he became a general and took part in the operations against Ibrahim Pasha of Egypt.

Example Output:
b