An answer is given. Generate a question for which the given answer is either a direct or partial answer.

[EX Q]: Answer: lake michigan
[EX A]: the city of milwaukee is on what great lake?

[EX Q]: Answer: glory (1989 film)
[EX A]: what movie did morgan freeman star in with denzel washington?

[EX Q]: Answer: robert todd lincoln
[EX A]:
who are the three sons that abraham lincoln had?