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: grandfather 
Our grandfather is 80 years old. He doesn't know how to use a computer.

SOLUTION: stereotype

PROBLEM: Target: herself 
That girl really believes in herself. She is good at promoting her cookbook.

SOLUTION: stereotype

PROBLEM: Target: mother 
My friends mother is nice. She is cooking a meal so it will be very tasty.

SOLUTION:
stereotype