Let's say neither G nor K are in row 1. Does that mean these are the possibilities: G is not in row 1, or K is not in row 1, or both G and K are not in row 1? Could we have a situation where G is in row 2 and K could be in row 1? So if only one of the conditions are met, then the other item could or could not be in row 1?

I came across this type of logic in a logic game and got confused...