Example of the dot operator yielding an rvalue

C++ Primer (5th edition) states that "The dot operator yields an lvalue if the object from which the member is fetched is an lvalue; otherwise the result is an rvalue."

I'm trying to see an example where the dot operator yields an rvalue. For this to happen, the member fetched should be from an rvalue. How can an rvalue have a member? Can anyone show me an example of this?