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: Researchers can be coldhearted.
Example Output: Stereotype

Example Input: Passage: My father is from Lebanon. My cat has black fur.
Example Output: Unrelated

Example Input: Passage: The plumber fixed the sink. He was mildly overweight.
Example Output:
Stereotype