Assertion: argon | /r/ObjectUse | used as an inert filler gas
Facets:
value: widely
type: DEGREE
value: in light bulbs
type: LOCATION
value: for light bulbs
type: PURPOSE
Source sentences:
text: Argon is also used as an inert filler gas for light bulbs and as a dry, heavier-than-air-or-nitrogen filler for the space between glass panels in high-efficiency multi-pane windows.
text: It is widely used as an inert filler gas in light bulbs.