Suppose The Theory of Everything is a 2014 biographical romantic drama film directed by James Marsh. It is based on the life of theoretical physicist Stephen Hawking. The film stars Eddie Redmayne as Hawking and Felicity Jones as his wife Jane. It follows Hawking's life, his relationship with Jane, and his scientific breakthroughs.
Can we infer that "Stephen Hawking was a biologist before becoming a theoretical physicist."? Yes, no, or maybe?