Assertion: graphite | /r/ObjectUse | used for drawing
Facets:
value: as a lubricant
type: PURPOSE
Source sentences:
text: Paradoxically, even though graphite is soft enough to be used for drawing and as a lubricant, it is also strong enough to be used in refining furnaces, for brake linings, and to create expensive lightweight sports equipment.
text: What is graphite: Graphite is a metallic, grey mineral that is used for writing or drawing.