Order-based training: refers to a talent training model with a clear job destination organized by the labor security department and entrusted by a training institution according to the demand for employment after the employer has submitted an application for employment. Which of the following belongs to order training? ['A survey conducted by a vocational and technical college found that cooking is about to become a hot job in the next few years. That year, a culinary major was opened. Sure enough, graduates are very sought-after, and many famous restaurants have signed up.', 'A private nursery urgently needs several childcare workers. After receiving the application, the competent department immediately finds a senior substitute training organization to organize training. Several qualified childcare workers arrive soon.', "A city hires a group of scientific research personnel in the province's colleges and universities according to the employment needs reported by the townships and villages each year, and then assigns them to be the vice mayor of science and technology.", 'A property company has recently been selected by multiple communities and needs to add a large number of security. In order to successfully take over the security work of each community, the company has urgently recruited dozens of novices and is entrusting professional security companies to strengthen training.']