Assertion: argon | /r/ObjectUse | used as propellant
Facets:
value: in aerosol cans
type: LOCATION
value: sometimes
type: TEMPORAL
Source sentences:
text: Argon is used as a propellant in the development of the Variable Specific Impulse Magnetoplasma Rocket (VASIMR).
text: Argon is sometimes used as the propellant in aerosol cans.