When recruiting for a company, Zhang San, Li Si, Wang Wu, Zhao Liu, Qian Qi and the other 5 people were shortlisted. From the educational background, 2 people were masters and 3 were doctors; from the gender perspective, 3 were men and 2 were women. It is known that Zhang San and Wang Wu have the same gender, but Zhao Liu and Qian Qi have different genders; Li Si and Qian Qi have the same educational background, but Wang Wu and Zhao Liu have different educational backgrounds. In the end, only one female master applied successfully. It can be concluded from this that the successful candidates are:. ['Zhang San.', 'Lee Si.', 'Wang Wu.', 'Zhao Liu.']