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: In what city was Watson a laboratory staff member from 1957 to 1981? Passage:Watson graduated in 1943 with BS in electrical engineering from Iowa State College. From 1943 to 1946 he was a researcher at the United States Naval Research Laboratory in Washington, D.C. During his work for the U.S. Navy he went to night school at George Washington University. He graduated from the University of Iowa with Ph.D. in 1948 with thesis The polarizability of the meson-charge cloud of a neutron in an external electrostatic field. He was from 1948 to 1949 an Atomic Energy Commission (AEC) Fellow at the Institute for Advanced Study and from 1949 to 1951 an AEC Fellow at the Berkeley Radiation Laboratory. He was from 1951 to 1954 an assistant professor of physics at Indiana University and from 1954 to 1957 an associate professor of physics at the University of Wisconsin, Madison. In 1953 he was elected a fellow of the American Physical Society. From 1957 to 1981 he was a staff member of Lawrence Berkeley National Laboratory, as well as a professor of physics at the University of California, Berkeley. In 1974 he was elected a member of the National Academy of Sciences. From 1981 to 1991 he was the director of the Marine Physical Laboratory, Scripps Institute of Oceanography, as well as a professor of physical oceanography at the University of California, San Diego. In 1991 he retired as professor emeritus. His doctoral students include Shang-keng Ma.

Example Output: b

Example Input: Question: Which location in California where the LST-1159 stopped at has a higher land elevation? Passage:Initially attached to Amphibious Forces, Atlantic Fleet, LST-1159 conducted shakedown in Guantanamo Bay and the Caribbean before commencing local operations out of Norfolk and Little Creek, Virginia. She departed Norfolk on 24 February 1954 for duty with Amphibious Forces, Pacific Fleet, and, after a transit of the Panama Canal, reached the west coast on 20 March. The tank landing ship operated out of her new home port, San Diego, until 20 September, including calls at San Francisco, San Pedro, California, and Esquimalt, British Columbia. LST-1159 stopped briefly at Pearl Harbor before proceeding on toward Japan. While on the voyage across the Pacific, the ship was diverted to join Task Force (TF) 98 in Southeast Asian waters and arrived at Henriette Pass, near the port of Haiphong, French Indochina on 29 October. Taking part in "Operation Passage to Freedom", LST-1159 transported refugees from the northern part of what became a divided Vietnam, to the southern ports of Tourane (Da Nang) and Saigon.

Example Output: a

Example Input: Question: How many soldiers were there in the Russian Imperial Army? Passage:He returned to the factory in Kamianske during the Russian Revolution of 1905. He again joined the volunteer fire brigade. He returned to Vilnius in 1911 and organized a fire brigade in Snipiskes in 1914. Semashko rallied the men into a militia to protect the city from hooligans and fires when the Russian Imperial Army abandoned the city during the Great Retreat in mid 1915. He became city's fire chief (brandmajor) and commanded both local and German Ober Ost firefighters during fire. At the same time, he turned away from Polish political activists towards Belarusian and Lithuanian causes. He was a contributor to the Belarusian newspaper Homan and was elected to the Rada of the Belarusian Democratic Republic in January 1918. He participated in the declaration of independence of the Belarusian People's Republic and drafted plans for establishing a Belarusian university, named after Adam Mickiewicz, in Minsk. On 23 April 1918, he participated in discussions with the Council of Lithuania regarding the territory of Lithuania and Belarus after the war and ideas on resurrecting the old Grand Duchy of Lithuania.

Example Output:
b