Syntax for a package's program's additional requirements

I've tried searching around to find an answer to this question without much luck. I'm trying to determine what I can set using the Additional requirements field on the requirements tab of a standard package program in SCCM 2012. There are checkboxes for OS versions and a little Additional requirements field on the bottom. Is it possible to use a wmi query to verify that the system is a Dell vs a Lenovo?

Thanks,

Glenn