Assertion: fuel | /r/HasProperty | charcoal
Facets:
value: in the case of gunpowder
type: OTHER
Source sentences:
text: In the case of gunpowder (a pressed composite without a polymeric binder) the fuel is charcoal, the oxidizer is potassium nitrate, and sulphur serves as a reaction catalyst while also being consumed to form a variety of reaction products such as potassium sulfide.