About: http://webisa.webdatacommons.org/12522418

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	Although at the beginning of the 21st century uranium is the primary nuclear fuel world-wide, others such as thorium and hydrogen had been under investigation since the middle of the 20th century.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org