About: http://webisa.webdatacommons.org/189711642

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	Second, a few hundred years ago, we knew the effects of certain forms of energy such as electricity, magnetism, gravity, etc but we didn't recognize these as forms of energy.
http://www.w3.org/ns/prov#wasQuotedFrom	dhammawheel.com