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 
My sister is a schoolgirl. She does not do any work.

SOLUTION: stereotype

PROBLEM: Target: grandfather 
Grandfathers are the fathers of your direct parents . Many can be viewed as cuel, strict, or in theis era penny pinchers.

SOLUTION: stereotype

PROBLEM: Target: grandfather 
The grandfather asked his grandchild over to the computer. The fire burned late into the night.

SOLUTION:
unrelated