About: http://webisa.webdatacommons.org/128169813

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	Crystal is the rarest resource, which can be mined from asteroids like Metal; it is used for developing new technologies and building certain advanced ships.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org