Detailed Instructions: 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.
Q: Question: Who was the mayor of Sydney the year Wilshire returned to that city? Passage:He was born in Sydney to James Robert Wilshire and Elizabeth Thompson, a member of a prominent and well-connected colonial family. He was educated at Peter Steel's School in Pitt Street and Henry Brown's City Grammar School before studying at the University of Sydney. He was a clerk and land agent at Scone from 1862. In 1883 he returned to Sydney, being now wealthy enough to retire. He was an alderman and mayor of Burwood, and was involved with a number of societies, notably those connected with sanitary reform. In 1889 he was elected to the New South Wales Legislative Assembly as one of the four Free Trade members for Canterbury, but he did not contest the 1891 election. Wilshire moved from Burwood to Neutral Bay, New South Wales in around 1894 (as did his half-brother Henry Austin Wilshire), and lived there until his death in 1909, leaving to his widow a substantial portfolio of local properties. He had no children.

A:
a