It would be cool if in "Answer Field" we could input how

It would be cool if in "Answer Field" we could input how the answer should be exactly written.

E.g.:

Q: What's the correct spelling form for "Mom" in Spanish?
A: Mamá

So as it is an spelling question there's only one correct answer but we need them to write it down in order to see if they're correct or not. And we also don't want to evaluate the answer manually.