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You are chef for a day. There are different dishes you can make, but you need to pick of them for the dinner menu. You have sent all attendees the list of dishes, and each attendee has ranked all dishes in order of preference (from to , no ties).
You want to choose a list of dishes with the following property: for every dish that is not on , there is some dish on that a majority of the attendees rank above .
Can you always make such a list, no matter how the attendees rank the dishes?