Assertion: lead pencil's lead | /r/HasProperty | obtained a combination of both
Facets:
value: further
type: DEGREE
value: via submerged fuel combustion
type: MANNER
value: via injection
type: MANNER
Source sentences:
text: Metallic lead is further obtained from the high-lead (25–40%) slags via submerged fuel combustion or injection, reduction assisted by an electric furnace, or a combination of both.