Assertion: boredom | /r/HasProperty | caused
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Boredom is sometimes caused by having “nothing to do,” but that’s not always the case, and many people can do “nothing” without feeling bored.
text: If we find nothing, then boredom is the cause.
text: This is ironic, because boredom is one of the reasons people list when they start using drugs.