Assertion: butane | /r/ObjectUse | used as fuel
Facets:
value: for cigarette lighters
type: PURPOSE
value: directly
type: MANNER
value: commonly
type: TEMPORAL
Source sentences:
text: Butane is commonly used as a fuel, propellant and refrigerant, as well as a petrochemical feedstock.
text: In addition , butane is used as a fuel and thus you don’t need electrical outlets or batteries.
text: Butane can also be used as a fuel directly.
text: It is also a main component of gasoline, and it is used as a fuel for cigarette lighters.