Complex sentence: Mikhail Klimkovich (;) (20 November 18995 November 1954) was a Belarusian poet, librettist, and author of the lyrics to the Anthem of the Byelorussian SSR.
Split into simpler sentences: Mikhail Klimkovich (;) (20 November 18995 November 1954) was a Belarusian poet. He wrote the lyrics to the Anthem of the Byelorussian SSR.