Assertion: campfire | /r/ObjectUse | used for cooking
Facets:
value: since immemorial
type: TEMPORAL
value: since time
type: TEMPORAL
Source sentences:
text: Campfires have been used for cooking since time immemorial.
text: This page is about the kind of campfires used by Cooks.
text: Campfires have been used for cooking since time immemorial; see cooking on a campfire.