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 total has Allison owned D Magazine? Passage:Allison co-founded D Magazine -- a monthly magazine covering Dallas -- in 1974, with backing from Dallas investor Ray Lee Hunt. In 1981, he and a group of investors purchased Sport Magazine, which they sold in 1984. He went on to found and publish Art & Antiques in 1984. In 1985, Allison was asked by William F. Buckley, Jr. to join the board of directors of the National Review, and in 1980 he became its publisher, succeeding William A. Rusher. In 1981 or 1982 Allison sold his company Allison Publications, publisher of Art & Antiques. In 1993, he resigned as publisher of National Review. In 1995, he and investor Harlan Crow repurchased D Magazine, and in 2001, Allison bought out Crow to become the magazine company's sole owner. In 1993, Allison edited a new edition of The Bible To Be Read As Living Literature, published by Simon & Schuster. He is also the author of Is That In The Bible? (Dell, 1992) and Condemned To Repeat It: History Lessons For Leaders (Viking Penguin, 1998).


b