What's Inside a Mezuza?

What blessing or prayer is inside a mezuzah? Please answer a debate I am having with a relative. I say it is the "Shema!" Thank you!

What does your relative say?

But seriously, a mezuzah is a scroll which the Torah tells us to put on our doorways. Written upon this scroll are the first two paragraphs of the "Shema." That is, the 15 verses from Deuteronomy 6:4-9 and 11:13-21.

So, Bill, it looks like you've won the first round! But Jewish study is an ongoing process, and the World Champion is the person who never gives up the fight!