Legal analysis: Legal relationship refers to the social relationship in the form of legal rights and obligations formed by legal norms in the process of adjusting people's behavior. There are three constituent elements: (1) the subject of the legal relationship; (2) the content of the legal relationship; (3) the object of the legal relationship.

For example, A and B sign a sales contract. In this legal relationship,

Subjects: A and B;

Object: contract;

Content: A pays money to B, and B provides goods to A .

Legal basis: "The People's Republic of China and the Civil Code"

Article 5 Civil subjects engaged in civil activities shall abide by the principle of voluntariness and establish, change and terminate according to their own will Civil legal relations.

Article 133: Civil legal acts are acts by which civil subjects establish, change, and terminate civil legal relationships through expressions of intention.