The new concept of "ant family" is familiar to the continuous media coverage and the heated discussion of public opinion. The so-called ant family is a group of people who have low salary income after graduation and live in cheap rental housing. According to this definition, which of the following belong to the ant family? ['Xiao Wang, who had graduated from university for one year, worked as a clerk in a company in Shenzhen with a monthly income of 1,500 yuan. The company gave her a two-bedroom house.', 'Xiaotang Middle School applied for a company after graduation, with a monthly income of 1500 yuan, and rented a private house near the company with others.', "Xiao Liu is a fourth-year university student. He trains at a company that pays him 1,500 yuan per month and lives in the company's annex with his classmates.", 'Xiao Tan graduated from a university and worked in marketing for a company with a monthly income of 1500 yuan, a monthly rent sharing, and a water and electricity fee of 350 yuan.']