About: http://webisa.webdatacommons.org/31505541

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	Prior level indicators require a shift in visual focus and primary concentration to accomplish objectives other than simply sighting a target, such as leveling the firearm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com