Ns102:Is part of

This is a general-purpose property relating one thing to another has type::page.

• Releases use it to say "I am part of ECO xx".

• Pages in Category:Software features need this as well as a subcategory in order to sort properly. The two must be kept in sync: all values of this property on pages that are in Category:Software features should themselves be subcategories of that category. Template:Feature tracking adds this property to pages. Enables a dynamic Feature roadmap — see Semantic MediaWiki#For software features..