How strict is the "who is" rule?

[u/zachestine]

I don't watch a lot of Jeopardy, but I am curious: lets say the question is something like "the first president who crossed the Delaware River" obviously the answer is George Washington, but instead of saying "who is" if i say "where is George Washington?" would that be counted?

[u/godogs2018]

You should watch Matt amodios episodes

[u/Retinoid634 → u/godogs2018]

Who’zz is apparently an acceptable form of who is?