<http://webisa.webdatacommons.org/122574207>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/117857162>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/122574207> .
<http://webisa.webdatacommons.org/122574207>	<http://www.w3.org/ns/prov#value>	"USAF aircrews flying ELINT missions out of U.S. bases in such places as Okinawa and Alaska were alerted by Tracksmen messages to watch for Soviet missiles." .
<http://webisa.webdatacommons.org/prov/32144142>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/122574207> .
<http://webisa.webdatacommons.org/122574207>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<spyflight.co.uk> .