In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
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Question: Question: When did the expedition that John Colter was apart of in 1807 begin? Passage:Europeans may have ventured into the northern sections of the state in the late 18th century. Most of the southern part of modern-day Wyoming was nominally claimed by Spain and Mexico until the 1830s, but they had no presence. John Colter, a member of the Lewis and Clark Expedition, was probably the first American to enter the region in 1807. His reports of thermal activity in the Yellowstone area were considered at the time to be fictional. Robert Stuart and a party of five men returning from Astoria, Oregon discovered South Pass in 1812. The route was later followed by the Oregon Trail. In 1850, Jim Bridger located what is now known as Bridger Pass, which was later used by both the Union Pacific Railroad in 1868, and in the 20th century by Interstate 80. Bridger also explored the Yellowstone region and like Colter, most of his reports on that region of the state were considered at the time to be tall tales. During the early 19th century, fur trappers known as mountain men flocked to the mountains of western Wyoming in search of beaver. In 1824, the first mountain man rendezvous was held in Wyoming. The gatherings continued annually until 1840, with the majority of them held within Wyoming territory.


Answer: b


Question: Question: Did the film that Ripstein produced in 2015 win any Oscar awards? Passage:Ripstein, Moisés Zonana, and Michel Franco produced Franco's Chronic (2015). The film competed for the Palme d'Or and received the Best Screenplay Award at the 2015 Cannes Film Festival, was screened out of competition at the San Sebastián International Film Festival and was nominated for Best Film at the 2016 Independent Spirit Awards. Chronic premiered in Mexican theaters on April 8, 2016; at the end of its first week, it was among the top ten most-watched films in the country. Ripstein, Franco, Lorenzo Vigas, Guillermo Arriaga, Rodolfo Cova, and Édgar Ramírez produced From Afar, a film directed by Vigas which won the Golden Lion at the 72nd Venice International Film Festival and was screened at the 13th Morelia International Film Festival.


Answer: a


Question: Question: How long after the tree dies does it live on the tree? Passage:Kretzschmaria deusta, commonly known as brittle cinder, is a fungus and plant pathogen found in temperate regions of the Northern Hemisphere. It is common on a wide range of broadleaved trees including beech (Fagus), oak (Quercus), lime (Tilia), Horse Chestnut and maple (Acer). It also causes serious damage in the base of rubber, tea, coffee and palms. It causes a soft rot, initially and preferentially degrading cellulose and ultimately breaking down both cellulose and lignin, and colonises the lower stem and/or roots of living trees through injuries or by root contact with infected trees. It can result in sudden breakage in otherwise apparently healthy trees. The fungus continues to decay wood after the host tree has died, making K. deusta a facultative parasite. The resulting brittle fracture can exhibit a ceramic-like fracture surface. Black zone lines can often be seen in cross-sections of wood infected with K. deusta.


Answer:
a