Suppose that Jonas executes a TOD instrument, naming Sallie as his beneficiary. Two years later, he sells the subject property to William by way of a contract for deed. Two years after that, Sallie dies, leaving her two children, Aaron and Erin, as her only heirs. Two years after Sallie dies, Jonas dies. At the time of the death of Jonas, William still owes $50,000 on the contract. What are the rights to the property, if any, of Aaron and Erin? Explain.