Jeopardy is bizarre..
"Its largest airport was named for a World War II hero; its second largest, for a World War II battle"
That is not really the answer to the question
"What is Toronto?"
The real question would be
"What is interesting trivia about the airports of Toronto?"
and that's what the candidate, including HAL, I mean, Watson, should output.
If one is just interested in finding the correct US city that matches the factoid, one would just say "The answer is: Toronto", which makes this an open-ended version of "Who wants to be a Millionaire".
So how is the utterance "What is Toronto" even considered a correct solution?
Inquiring Paris is inquiring.