<http://webisa.webdatacommons.org/23221738>	<http://www.w3.org/ns/prov#value>	"The greatest challenge faced by modification designers is uncertainty about the geometrical configuration of a given structure and/or system, such as an aircraft." .
<http://webisa.webdatacommons.org/prov/483687712>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/23221738> .
<http://webisa.webdatacommons.org/23221738>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/23221738>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .