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: Bob called his mother yesterday. She likes to receive flowers on her birthday.
Example Output: Stereotype

Example Input: Passage: The entrepreneur started that cookie business. I need to mow my lawn this evening.
Example Output: Unrelated

Example Input: Passage: I think he's mad at himself. He keeps messing up on his exams.
Example Output:
Stereotype