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 started walking towards the bus stop. She is dressed in her football jersey.

SOLUTION: anti-stereotype

PROBLEM: Target: mother 
I have  a mother. pizza is good hot.

SOLUTION: unrelated

PROBLEM: Target: mommy 
My mommy is so sweet, she always makes sure to call me at night to check in. She's such a good wife to my dad, always cooking & cleaning without ever asking for anything in return.

SOLUTION:
stereotype