Definition: 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.
Input: Question: How many years were there between Bryson Sr's arrival in Canada and the establishment of the Bank of Ottawa? Passage:He was born in Paisley, the son of James Bryson and Jane Cochrane, and came to Upper Canada with his parents in 1821. In 1835, he moved to the area near Fort-Coulonge in Lower Canada, where he entered the timber trade. In 1845, he married Robina Cobb. Bryson was mayor of Mansfield-et-Pontefract from 1855 to 1857 and from 1862 to 1867. He also served as justice of the peace, postmaster for Fort Coulonge and warden for Pontiac County. In 1857, he was elected to represent Pontiac in the Legislative Assembly of the Province of Canada in a by-election held after the death of John Egan, but the assembly was dissolved before he took his seat. Bryson was defeated in the general election that followed in 1858. In 1867, he was named to the province's Legislative Council for Inkerman division. He helped establish the Bank of Ottawa, later serving as a director, and promoted the development of railway links in the region. Bryson retired from politics in 1887 and died in Fort-Coulonge at the age of 86.


b