Question: What's the name of the literary prize awarded every year that was won by a Canadian poet and founder of the Writers' Trust of Canada?
Sentence (from "Margaret Atwood"): Margaret Eleanor Atwood, {'1': ", '2': ", '3': ", '4': "} (born November 18, 1939) is a Canadian poet, novelist, literary critic, essayist, inventor, and environmental activist.
Relevant evidence: Yes