Wikimedia

Generally speaking, "Wikimedia" is an umbrella term, which refers as much to "the collection of websites that includes Wikipedia, Wikisource, Wikidata, etc." as it does to the foundation, so it needs to be a distinct entity.

digraph { layout=dot rankdir=BT overlap=false concentrate=false bgcolor=lightblue // splines=" " "Wikimedia\nFoundation" -> Wikimedia Wikimedia -> { Wikipedia Wikidata Wikiversity "Wikimedia\nCommons" Wikibooks Wiktionary Wikisource } "Wikimedia\nFoundation" -> MediaWiki "Wikimedia\nFoundation" -> WikiBase MediaWiki -> Wikimedia MediaWiki -> WikiBase WikiBase -> Wikidata Wikidata ->{ Wikipedia Wikiversity "Wikimedia\nCommons" Wikibooks Wiktionary Wikisource } }