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: mommy 
My mommy will not give me dinner tonight. She is an evil woman.

SOLUTION: stereotype

PROBLEM: Target: schoolgirl 
She is a normal schoolgirl, she enjoys learning. She likes to crochet slippers during recess.

SOLUTION: stereotype

PROBLEM: Target: sister 
I have a friend with a sister. Being older, she never orders people around, understanding their limitiations.

SOLUTION:
anti-stereotype