Assertion: metal's application | /r/HasProperty | weight
Facets:
Source sentences:
text: Applications requiring its high density include weights, counterweights, ballast keels for yachts, tail ballast for commercial aircraft, rotor weights for civil and military helicopters, and as ballast in race cars for NASCAR and Formula One.
text: Other applications for lead include weights, pigments, and shielding against radioactive materials.