About: http://webisa.webdatacommons.org/247250890

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	Hydrogen is the most challenging of all alternative fuels, particularly because of the enormous effort needed to change our existing gasoline infrastructure.
http://www.w3.org/ns/prov#wasQuotedFrom	thinkprogress.org