<http://webisa.webdatacommons.org/prov/156874622>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/108816236> .
<http://webisa.webdatacommons.org/prov/53162993>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/108816236> .
<http://webisa.webdatacommons.org/108816236>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<irconnect.com> .
<http://webisa.webdatacommons.org/108816236>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/108816236>	<http://www.w3.org/ns/prov#value>	"Northrop Grumman Shipbuilding's test and trials group tested LPD 21's main propulsion, communications, steering, navigational, radar and other systems." .