About: http://webisa.webdatacommons.org/230912107

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	New types of U-boats, stronger armor, more efficient motors, more accurate torpedo tubes, and other factors have increased submarine hitting power for all Nations just as modern mechanical science has
http://www.w3.org/ns/prov#wasQuotedFrom	sdln.net