About: http://webisa.webdatacommons.org/284726540

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	Obstacles such as mines, tank traps, roadblocks, ditches, barricades, and demolitions will be located at defiles or
http://www.w3.org/ns/prov#wasQuotedFrom	maritime.org