About: http://webisa.webdatacommons.org/21791390

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The positions were a good 10 degrees ahead of the convoy's progress, indicating a German plotting at 10 to 10.5 knots whereas the convoy was making 9.
http://www.w3.org/ns/prov#wasQuotedFrom	ibiblio.org