About: http://webisa.webdatacommons.org/194515309

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	Soldiers saluted to pretend that they needed to protect their eyes from the bright light.Another theory is that when soldiers wore metal masks, they would lift their mask up to see if another soldier was a friend or enemy.
http://www.w3.org/ns/prov#wasQuotedFrom	taipeitimes.com