<http://webisa.webdatacommons.org/prov/321795630>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/122383503> .
<http://webisa.webdatacommons.org/122383503>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/122383503>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<fas.org> .
<http://webisa.webdatacommons.org/122383503>	<http://www.w3.org/ns/prov#value>	"and at various forward chokepoints.(41) By 1981, unclassified depictions of SOSUS described it has having 36 installations, including facilities located in" .