Assertion: lead | /r/HasProperty | occurring metal
Facets:
value: naturally
type: MANNER
value: in the environment
type: LOCATION
Source sentences:
text: Lead, a naturally occurring metal, is abundantly found throughout the Earth.
text: Lead is a naturally occurring metallic element usually associated with other ore minerals (primarily those of zinc silver and copper ) such as pyrite quartz and barite .
text: Lead is a naturally occurring metal found in small amounts in the earth's crust.
text: Lead is a naturally occurring metal in the environment.
text: Lead is a naturally occurring metal in the environment.