About: http://webisa.webdatacommons.org/1861033

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	Tunnels, living quarters and other cavities were drilled or blasted, including one just under the Stickney crater which was obviously intended as the compartment of a large engine for pushing Phobos through space.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com