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.

Target: schoolboy 
The schoolboy has some young qualities about him. Young qualities are usually producing immature people.
stereotype
Here the first sentence implies that the target person is young, which is a common stereotype of schoolboys. The second sentence says that young people are usually immature, which is also stereotypically true. Thus, this example conveys both a stereotype and an anti-stereotype against schoolboys..