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.

Input: Consider Input: Question: After the party split into two in 1903, which leader of the resulting parties was born the earliest? Passage:In 1903, the party split into Bolsheviks led by Vladimir Lenin and Mensheviks led by Julius Martov and Lunacharsky sided with the former. In 1907, he attended the International Socialist Congress, held in Stuttgart. When the Bolsheviks in turn split into Lenin's supporters and Alexander Bogdanov's followers in 1908, Lunacharsky supported his brother-in-law Bogdanov in setting up Vpered. Like many contemporary socialists (including Bogdanov), Lunacharsky was influenced by the empirio-criticism philosophy of Ernst Mach and Avenarius. Lenin opposed Machism as a form of subjective idealism and strongly criticised its proponents in his book Materialism and Empirio-criticism (1908). In 1909, Lunacharsky joined Bogdanov and Gorky at the latter's villa on the island of Capri, where they started a school for Russian socialist workers. In 1910, Bogdanov, Lunacharsky, Mikhail Pokrovsky and their supporters moved the school to Bologna, where they continued teaching classes through 1911. In 1913, Lunacharsky moved to Paris, where he started his own Circle of Proletarian Culture.


Output: a


Input: Consider Input: Question: When was Marine Corps Air Station Quantico founded? Passage:The squadron was originally formed as VMJ-1, and had origins in the earlier VJ-6M. On July 7, 1941 they were redesignated VMJ-152 at Marine Corps Air Station Quantico. They moved to San Diego a few months later and shipped out to the South Pacific on October 10, 1942. They joined Marine Aircraft Group 25 on October 25, 1942, and immediately began flying missions in support of Marines engaged in the Battle of Guadalcanal. In November 1942, the squadron became part of the joint-service South Pacific Combat Air Transport Command. Following this they made numerous supply drops during the New Georgia Campaign in 1943. The squadron was redesignated again to VMR-152 on June 3, 1944. In 1944, the squadron was flying in support of the Battle of Bougainville and would be based on Bougainville for the remainder of the war. From here the squadron also supported allied forces during the Philippines Campaign (1944–45) and the Battle of Okinawa. Following the surrender of Japan, the squadron flew in support of the 1st Marine Division during their occupation of Northern China from 1945 - 1947. Following their China duty the squadron returned to the United States where they were based at Marine Corps Air Station El Toro, California.


Output: b


Input: Consider Input: Question: Which colleague Neugebauer collaborated with at Mount Wilson Observatory is the oldest? Passage:Neugebauer was active in infrared astronomy, and played a leading role in infrared studies of the planets. In addition—and largely through his activities with the Infrared Astronomical Satellite (IRAS) and the Infrared Processing and Analysis Center (IPAC)—he led both ground- and space-based infrared studies of the stars, the Milky Way and other galaxies. Observations by him and his colleagues at Mount Wilson and Palomar observatories revealed thousands of infrared sources in the sky, and afforded the first infrared view of the galactic center. Together with Robert B. Leighton, he completed the Two-Micron Sky Survey, the first infrared survey of the sky, which cataloged more than 5,000 infrared sources. Together with Eric Becklin, he discovered the Becklin–Neugebauer Object, an intense source of infrared radiation in the Orion Nebula that is one of the brightest objects in the sky at wavelengths less than 10 micrometres.



Output: a