About: http://webisa.webdatacommons.org/39880721

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	2Depending on its construction, a guard may be described as, for example, casing, shield, cover, screen, door, enclosing guard.NOTE 3 The terms for types of guards are defined in 3.27.1 to 3.27.6.
http://www.w3.org/ns/prov#wasQuotedFrom	machinerysafety101.com