About: http://webisa.webdatacommons.org/273625237

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	Pyrotechnic blue light had been around for generations before the Civil War, a required item on U.S. Navy warships, and commonly used in the civilian world to illuminate tourist attractions such as caverns and other natural wonders.
http://www.w3.org/ns/prov#wasQuotedFrom	civilwarmonitor.com