Assertion: acetone | /r/AtLocation | forest fires
Facets:
value: naturally
type: MANNER
Source sentences:
text: It occurs naturally in plants, trees, volcanic gases, and forest fires.
text: Acetone occurs naturally in plants, trees, forest fires, vehicle exhaust and as a breakdown product of animal fat metabolism.
text: It occurs naturally in plants, trees, volcanic gases, forest fires, and as a product of the breakdown of body fat.