Assertion: lamp's gas | /r/HasProperty | nitrogen
Facets:
value: typically
type: DEGREE
Source sentences:
text: The conventional incandescent lamp contains a tungsten filament sealed within a glass envelope that is either evacuated or filled with an inert gas or a mixture of these gases (typically nitrogen, argon and krypton).
text: During this operation, the bulb is being flushed with an inert gas (nitrogen or argon) to remove the air and prevent the mount from oxidizing.