instruction:
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.
question:
Question: How many years did the Great Depression last? Passage:Originally from New Brunswick, Harrison graduated from Nova Scotia Agricultural College in 1922, and, in 1924, from the Ontario Agricultural College with a B.Sc. in agriculture. He earned an MSc in plant pathology from Macdonald Campus of McGill University a year later. A doctoral degree he started at the University of Toronto in 1929 was abandoned due to the Great Depression. He established a herbarium of mycological specimens where he was employed for many years at the Kentville Research Station (now the Atlantic Food and Horticulture Research Centre); most of his collections are now housed at the Canadian National Mycological Herbarium. His early research concerned the fungal infestation of plants, such as that of Colletotrichum lindemuthianum on beans (Phaseolus). Working with John Frederick DeWitt Hockey, they made many contributions to the control and prevention of diseases of horticultural crops. They were among the first to use the sticky slide spore trap to estimate the densities of fungal spores.

answer:
b


question:
Question: How long did the Napoleonic Wars last? Passage:Promoted to commander on 7 September 1795, West became commanding officer of the sloop HMS Diligence on the West Indies Station in December 1795. He was promoted to captain on 15 November 1796 and went on to be commanding officer of the sixth-rate HMS Tourterelle also on the West Indies Station. He became commanding officer of the third-rate HMS Utrecht at Chatham in March 1801 and commanding officer of the third-rate HMS Excellent in January 1807. In HMS Excellent he served off the coast of Catalonia and landed with a naval brigade with orders to help defend Rosas which was under attack from some 5,000 French troops in an action in November 1808 during the Napoleonic Wars. He took 250 of his ship's men and rescued a group migueletes (Catalan mercenaries) who were are risk of losing their lives, but not before having his own horse shot out from under him.

answer:
b


question:
Question: What was the name of the fourth national park? Passage:The history of SR 123 begins with the establishment of the Pacific Forest Reserve in 1893, which became the Mount Rainier Forest Reserve on in 1897, both included the area near the present highway. The Mount Rainier National Park was established as the fifth national park on March 2, 1907. The Mount Rainier National Forest Reserve became the Rainier National Forest in 1907 and Columbia National Forest in 1908. In 1923, a renumbering and restructuring of the state highway system occurred and a branch of , later named the Cayuse Pass–Yakima branch, was added to the system. The northern terminus of the roadway at Cayuse Pass became (US 410) during the creation of the United States Numbered Highways. The Columbia National Forest replaced the Rainier National Forest in 1933. The branch of State Road 5 became the Cayuse Pass branch of (PSH 5) in 1937. Between 1946 and 1959, a ski resort operated at Cayuse Pass. In 1949, the Columbia National Forest was renamed to the Gifford Pinchot National Forest to honor a pioneer of the same name. During the 1964 highway renumbering, the Cayuse Pass branch of PSH 5 became , an auxiliary route of . SR 14 became on June 20, 1967 and SR 143 became SR 123, while US 410 became . Since 1974, the Washington State Department of Transportation (WSDOT) has recorded the opening and closing dates of Cayuse Pass. The only season when the pass was not closed was between 1976 and 1977. The earliest closure was on October 7, 1996 and the earliest opening was on March 30, 1992. The latest closure was on January 4, 1990 and the latest opening was June 21, 1996. After the Hanukkah Eve windstorm of 2006, a long segment of SR 123, which is only long, was washed out and need reconstruction. Construction started on June 21, 2007 and the road reopened on September 28, 2007.

answer:

a