In this task, you are given a short passage that may convey stereotype, anti-stereotype, or is unrelated. A stereotype is an over-generalized belief about a particular group of people. An anti-stereotype is an idea that goes against a common stereotype. The passage is unrelated if it does not convey a stereotype or anti-stereotype. You are expected to classify the passage into three classes: stereotype, anti-stereotype, and unrelated.

Example Input: Passage: The policeman walked down the street. A common pet is a Golden Retriever.
Example Output: Unrelated

Example Input: Passage: The prisoner will be confined for three more years. He is a member of a gang on the outside.
Example Output: Stereotype

Example Input: Passage: The historian was bookish, he was always studying.
Example Output:
Stereotype