Superseding is what honeybees do when their queen is sick and can’t lay eggs right. If she is not laying eggs, they will take a larva and turn it into a queen by feeding it royal jelly longer than worker and drone bee larvae. The supersedure cells are usually in the middle of the frame. Once the hive thinks they are going to be successful in having a new queen, they run her out of the hive or they kill her by forming a large heat ball around her and kill her in a cuddle death.
In my hive, the bees superseded the queen. At first they kicked her out of the hive but we didn’t know and found her on the ground and put her back into the hive. Then the did the cuddle death to her. Here is the video of the bees in my hive killing Queen Elizabeth.