How Could IBM's Watson Think That Toronto Is a U.S. City?

IBM's Watson computer thought Toronto was a U.S. city. Watson is a computer who is on jeopardy he was dominant until the last question. Basically they just went over how Watson thinks and he is never sure of an answer. He bases off of statistics. It finds enough evidence to conclude its answer. I am still impressed by Watson and the ability it has. I want one for myself. It is crazy how smart we can make computers now. Kind of scary.