<http://webisa.webdatacommons.org/453599211>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/473648677>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/453599211> .
<http://webisa.webdatacommons.org/prov/414490169>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/453599211> .
<http://webisa.webdatacommons.org/prov/122811777>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/453599211> .
<http://webisa.webdatacommons.org/453599211>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<aero-news.net> .
<http://webisa.webdatacommons.org/453599211>	<http://www.w3.org/ns/prov#value>	"Proposals for presentations are welcome on topics such as safety and risk management, maintenance, and technical issues." .