Aaron, Betty, Charlie, Debbie, and Eric each ordered a pizza with three of the following five toppings: green pepper, mushrooms, onions, pepperoni, and sausage. The only topping that Aaron and Charlie had in common was sausage. The only topping Debbie and Eric had in common was pepperoni. The only topping Charlie and Betty had in common was mushrooms. The only topping Debbie and Betty had in common was green pepper.
Which toppings did each of them have on their pizza?