About: http://webisa.webdatacommons.org/438589049

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	Two of the three trays were directly exposed to the vacuum of space and the third has gas inside, simulating the thin martian atmosphere consisting mainly of carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	esa.int