Legal basis: Article 119 of the Civil Procedure Law of People's Republic of China (PRC) must meet the following conditions: (1) The plaintiff is a citizen, legal person and other organization that has a direct interest in the case; (2) Having a clear defendant; (3) Having specific requests, facts and reasons; (4) Belonging to the scope of civil litigation accepted by the people's court and the jurisdiction of the people's court against whom the lawsuit is filed.