TASK DEFINITION: You are given a target person and two sentences. Your task is to determine whether the second sentence conveys either a stereotype, anti-stereotype, or is unrelated with respect to the first sentence and the target.  A stereotype is a widely held but oversimplified notion of a group of people. An anti-stereotype is an idea that goes against the widely held but oversimplified notion of a group of people. Sentences and targets are unrelated if there is no relevance between them.
PROBLEM: Target: schoolgirl 
The schoolgirl is doing her homework at the library. She is wearing a plaid skirt and a white, button-down shirt.

SOLUTION: stereotype

PROBLEM: Target: male 
The male was wearing a cotton t shirt. The cow was grazing in the meadow.

SOLUTION: unrelated

PROBLEM: Target: himself 
He is proud of himself. He lifted heavy weights at the gym.

SOLUTION:
stereotype