Assertion: tungsten | /r/ObjectUse | used as light bulb filaments
Facets:
value: mainly
type: DEGREE
value: frequently
type: TEMPORAL
Source sentences:
text: Tungsten and its alloys are used as light bulb filaments, as the part of x-ray tubes where x-rays are formed, as a catalyst to speed up chemical reactions, as a component of steel in high-speed tools, in turbine blades, in phonographic needles, as welding electrodes, as gyroscope wheels, as counterbalance and fishing weights, in darts, and in golf club components.
text: Tungsten is a common metal, frequently used in light bulb filaments.
text: Tungsten is mainly used as light bulb filaments.