Is she an actress?
Yes, she is
Are you a musician?
No, I'm not
Is he a chef?
Yes, he is
Is Joe a pilot?
No, he isn't
Is she a photographer?
No, she isn't
Are they doctors?
Yes, they are
Are you a student?
Yes, I am
Is Erika a scientist?
No, she isn't
Are they athletes?
No, they aren't
Are you engineers?
Yes, we are