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.

[EX Q]: 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.

[EX A]: b

[EX Q]: Question: How many people lived in Idaho Territory the year Clark first arrived there? Passage:Born on August 21, 1883, in Hadley, Indiana, Clark arrived in eastern Idaho Territory in 1884. His father Joseph engineered an early canal on the Snake River and later became the first Mayor of Idaho Falls, Idaho in 1900. Clark attended the public schools and left Idaho Falls High School at age 15 and then attended school in Terre Haute, Indiana. Clark returned to Idaho Falls working as a mercantile clerk, then moved to Mackay, Idaho shortly after its founding and saved money to attend the University of Michigan Law School, but did not graduate but instead read law to enter the bar in 1904. He entered private practice in Mackay from 1904 to 1930. He was a Judge Advocate General for the State of Idaho from 1914 to 1915. Clark left to fight in 1916 in the Border War and then World War I. He served in a machine gun unit and achieved the rank of lieutenant in the United States Army. He was a member of the Idaho House of Representatives from 1913 to 1916. He returned to private practice in Idaho Falls from 1930 to 1940. He served in the Idaho Senate from 1933 to 1936. He was the Mayor of Idaho Falls from 1937 to 1938. He was the Governor of Idaho from 1941 to 1942.

[EX A]: b

[EX Q]: Question: How many Kilometres in total does the Hemus motorway measure? Passage:From Botevgrad to Sofia, E79 joins Hemus motorway, designated A2. At the Bulgarian capital Sofia you have to enter the Ring Road, until Sofia Northern Bypass motorway is built. Signage is available. From Sofia to south there are of motorways (A6 Lyulin motorway and A3 Struma motorway) to Dupnitsa-north interchange. The Bulgarian Traffic law allows speeds up to on motorways unless otherwise stated. The road is leading from Dolna Dikanya to south, right to the Kulata-Promachonas. All the way to the Border Check point the road is of the standard 2-lane tarmac except for the section from the Pernik Province-Blagoevgrad Province border and the southern entrance to the city of Blagoevgrad where the road is of highway type and is long. The section between Dupnitsa and Blagoevgrad, 37km long, has been upgraded to a motorway standard and opened to traffic 2015. Also the last of these sections - lot 4 from Sandanski-south to the Greek border of 13km opened to traffic in August 2015. The stretch between Blagoevgrad and Sandanski - lot 3 - passes through the Kresna Gorge and is planned to feature a tunnel, which will be the longest motorway tunnel in Eastern Europe, whose construction will begin in 2015 and will cost app. EUR 650 mln.

[EX A]:
b