Original sentence: Azerbaijanis (; , ) or Azeris (, ), also known as Azerbaijani Turks (, ), are an ethnic group living mainly in the sovereign Republic of Azerbaijan and the Azerbaijan region of Iran, with a mixed cultural heritage, including Turkic, Caucasian and Iranian elements.They are the second-most numerous ethnic group among the Turkic-speaking peoples after Turkish people and are predominantly Shia Muslims
Edited sentence: Azerbaijanis (; , ) or Azeris (, ), also known as Azerbaijani Turks (, ), are a Turkic ethnic group, living mainly in the sovereign Republic of Azerbaijan and the Azerbaijan region of Iran.In addition to their Turkic roots, they also have a mixed background with Caucasian and Iranian elements.They are the second-most numerous ethnic group among the Turkic peoples after Turkish people and are predominantly Shia Muslims