Assertion: tin | /r/CapableOf | lead with 16 ppm
Facets:
Source sentences:
text: Tin is a relatively rare element in the Earth's crust, with about two parts per million (ppm), compared to iron with 50,000 ppm, copper with 70 ppm, lead with 16 ppm, arsenic with 5 ppm, silver with 0.1 ppm, and gold with 0.005 ppm (Valera & Valera 2003, p. 10).