Formula based on variable number of non-adjacent columns

Hello,

I have an excel sheet that contains decisions made by different people. They are all given then the same information is the same columns and then their decisions are imported into excel. Now I am tring to formulate decision rules but am struggling since not everyone is given the same questions and I don't know how many people will be involved (and therefore the number of columns) but I do know that only two people will be given the same identical questions to answer. I have attached a dummy workbook.

Can someone help create decision rules for column F?

Thanks.

abousetta