Property:Equivalent URI
From Linux Web Expert
"Equivalent URI" is a type and predefined property provided by Semantic MediaWiki to represent URI/URL values. This property is pre-deployed (also known as special property) and comes with additional administrative privileges but can be used just like any other user-defined property.
This is the page of special property Equivalent URI. It lists all pages using this special property. See the help page Special property Equivalent URI for further information.