Estonian language:

The southern group (South Estonian language) consists of the Tartu, Mulgi, Voru (Voro) and Setu (Seto) dialects. These are sometimes considered either variants of a South Estonian language, or separate languages altogether. Also, Seto and Voro distinguish themselves from each other less by language and more by their culture and their respective Christian confession.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What religion is associated with Seto and Voro?
Christian