Complex sentence: Kazimierz Romaniuk (born 21 August 1927, Hołowienki, Poland) is a Polish Roman Catholic priest, professor of biblical studies and, since 2004, has been the bishop emeritus of the diocese of Warszawa-Praga.
Split into simpler sentences: Kazimierz Romaniuk (born 21 August 1927, Hołowienki, Poland) is a Polish Roman Catholic priest, professor of biblical studies. In 2004, Romaniuk became the bishop emeritus of the diocese of Warszawa-Praga.