premise: William Alfred Hawkins (May 20, 1940 – July 4, 2016) was a Canadian songwriter, poet, musician and journalist, most notable for his contributions in the 1960s to Canadian folk rock music and to Canadian poetry. His best known song is "Gnostic Serenade", originally recorded by 3's a Crowd.
hypothesis: William Alfred Hawkins was born on May 21, 1940.
reason: William was born on May 20, 1940 not May 21, 1940. 