About: http://webisa.webdatacommons.org/417891238

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	Graphene is the strongest material in nature???roughly 200 times the strength of steel, even though it is only one atom thick.
http://www.w3.org/ns/prov#wasQuotedFrom	skepdic.com