PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The growth in clean energy tech is leading to an explosion of diversity in energy storage tech, both stationary and mobile, and that in turn brings up the cost and scarcity of materials such as platinum and other precious metals as well as various rare earths, along with other factors including geopolitical issues.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cleantechnica.com