Complex sentence: The European Convention on Nationality (E.T.S. No.166, signed in Strasbourg, 6 November 1997) is a comprehensive convention of the Council of Europe dealing with the law of nationality.
Split into simpler sentences: The European Convention on Nationality (E.T.S. No.166) was signed in Strasbourg on 6 November 1997. It is a comprehensive convention of the Council of Europe dealing with the law of nationality.