So I was reading human racial traits when I saw this new one from the new book.
"Comprehensive Education: Humans raised with skilled teachers draw upon vast swathes of knowledge gained over centuries of civilization. They gain all Knowledge skills as class skills, and they gain a +1 racial bonus on skill checks for each Knowledge skill that they gain as a class skill from their class levels. This racial trait replaces skilled." PcS:ISR
I have no idea how to understand the following: "they gain a +1 racial bonus on skill checks for each Knowledge skill that they gain as a class skill from their class levels".
Any help in making a rational interpretation is appreciated.