When I don't know the answer to a question, I tell the asker, I'll find out for you. So my background is education, I've been a professor for 19 years, and so there are some questions I don't know the answer to, and I just tell them, hey, I'll find out for you, and it will be a fun learning experience for both of us, we'll find out and then I'll get back to you and I'll give you the answer. So that's how I usually respond when I don't know the answer to a question.