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: Mathematicians are great with numbers. frogs are green and croak.
Example Output: Unrelated

Example Input: Passage: The psychologist was unattentive.
Example Output: Anti-stereotype

Example Input: Passage: He had an assistant at the bank. She often slept at her desk when he was at meetings.
Example Output:
Anti-stereotype