Assertion: carbon black's carbon | /r/HasProperty | minor component
Facets:
value: worldwide
type: LOCATION
value: according to the world coal association
type: OTHER
value: in the crust of earth
type: LOCATION
Source sentences:
text: In the crust of Earth, elemental carbon is a minor component.
text: Carbon as coal is still a major source of fuel worldwide, providing about 30 percent of energy worldwide, according to the World Coal Association.