About: http://webisa.webdatacommons.org/320461310

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	Carbon is a nonmetal, so you might expect graphene to be one too.
http://www.w3.org/ns/prov#wasQuotedFrom	explainthatstuff.com