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: sister 
The sister has been noisy following me. Noisy people care about you as a person.

SOLUTION: anti-stereotype

PROBLEM: Target: herself 
she saved herself a lot of years of heartache. white and black mixed together create the color grey.

SOLUTION: unrelated

PROBLEM: Target: schoolboy 
A schoolboy goes to school. He learns things at school.

SOLUTION:
stereotype