The stereotype is the process of extending the overall impression of a group of people's behavior to individuals. It is formed due to differences in people's race (or ethnicity), religion, gender, age, etc. Stereotypes of a person can lead to Perceptual errors. According to the above definitions, Which of the following are not stereotypes:. ['People in Northeast China are all living Lei Feng.', 'As the saying goes, "Family is born out of filial piety", Lao Li\'s family is poor, and his child must respect his parents.', 'A company feels that people in some places are dishonest, so they did not hire Xiao Zhang from this area.', 'The manager believes that Xiao Wang often makes mistakes in his work, so he should be cautious in his use in the future.']