About: http://webisa.webdatacommons.org/210940766

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	However, there is a limit to the number of airguns which may be towed due to the unwieldy size and towing drag, stresses and reliability and maintenance problems caused by the umbilical cable conventionally required.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com