About: http://webisa.webdatacommons.org/82422392

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	other harmful substances, including carbon monoxide, benzopyrene (* mutates ras codon 12 G-->T; Cancer 72: 432, 1993), nickel, polonium, and radon.
http://www.w3.org/ns/prov#wasQuotedFrom	pathguy.com