About: http://webisa.webdatacommons.org/270261636

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	In addition, carbon, nitrogen, sulfur, and iodine are considered metals, particularly in cases where they are bonded to other atoms via non-covalent bonds (e.g., ionic bonds and pi-pi bonds).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com