Assertion: lead | /r/HasProperty | metal
Facets:
Source sentences:
text: Lead is a metal that’s found in nature, deep within the ground.
text: Lead is a metal that occurs naturally in the earth's crust, but human activity — mining, burning fossil fuels and manufacturing — has caused it to become more widespread.
text: Lead is a metal that is poisonous (toxic) when inhaled or eaten.
text: Lead is a metal that is found in the environment and in many consumer products.
text: Lead is a metal that can harm children when it gets into their bodies.