Premise: How else can people understand tragedies such as Littleton, in which normal middle-class kids are not playing baseball or flirting with girls or even duking out their differences after school on the playground; they are nursing monstrous visions of murder and mayhem, while building bombs in their clueless parents' garage.

Hypothesis: In Littleton, normal middle-class kids are engaging in harmful activities, like building bombs in their garage.
Relation: entailment