About: http://webisa.webdatacommons.org/169823921

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	Recently, as the existing energy resources, such as oil, coal and the like, became exhausted, alternative energy sources thereto have attracted attention.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com