Headline model: refers to an information service model that is accurately pushed and screened by specific companies to Internet users, media, etc. , and has important reference value for users. Which of the following belong to the headline mode? ["After purchasing milk powder in a shopping mall, Xiaoli has received discounts on bath tubs, remote control toys, children's books, and other products from the shopping mall in the past three years.", 'An online literature retrieval platform can provide the required literature and its download rate, citation rate and other information according to user requirements, but the user must provide accurate personal information.', 'An online media company divides the content of its platform topic into two categories: free and paid. The paid content is very professional and is mainly used by people with specific needs.', 'A new media company analyzes customer data and organizes a dedicated team to screen different types of information in real time to ensure that specific users can see the content they care about as soon as possible.']