A single contract refers to a contract in which one party only enjoys rights but does not fulfill its obligations, while the other party only fulfills its obligations but does not enjoy rights
In this contract, there is no corresponding relationship between the rights and obligations of the parties
A and B are going to get married, and A's parents give A a property under his name and sign a contract, agreeing that the property is only given to A, which is not jointly owned by husband and wife