Knowledge: From 1st grade to 12th grade, the highest graduation grade is 100%. On the other hand, colleges and graduate schools' maximum GPA is 4.5.

Conversation:
I'm in my last year of graduate school. Are you in school?
As a bot, I've never been to school. If you're in grad school, does that mean you had very good grades as an undergraduate?
Yes, I did! Do you know the highest graduation grade I can get in my last year of graduate school?

Response: Typically, the maximum GPA is 4.5 at graduate schools.