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 long had Christchurch been in existence for when Gould was born? Passage:Born in the Christchurch suburb of Fendalton on 19 October 1925, Gould came from a well-connected Canterbury family. His father was Derrick William Joseph Gould, a prominent businessman, racehorse owner and captain of the New Zealand polo team, and his mother was Elisabeth Mary Gould (nėe Elworthy). His paternal grandfather was George Gould, whose father, also called George Gould, was one of the founders in 1851 of the financial agents Gould Beaumont and Company that in 1919 amalgamated with two other firms to become Pyne Gould Guinness, one of New Zealand's largest stock and station agents. Other notable relatives on his father's side of the family include his father's cousin, the historian George Macdonald, and former British Labour MP Bryan Gould, who is a descendant of the elder George Gould. David's mother was a granddaughter of both Churchill Julius, the first Anglican Archbishop of New Zealand, and Edward Elworthy, an important landowner in South Canterbury. She was thus a first cousin of Charles Elworthy, Baron Elworthy, and niece of Sir George Julius and Awdry Julius.


b