Complex sentence: The semi-round house which separated the square from the Bunina Street, was demolished during the World War II. The place was used as a garden in the 1950s and 1960s, but later the modern restaurant building was constructed.
Split into simpler sentences: The semi-round house which separated the square from the Bunina Street, was demolished during the II World War. The garden was planted on this places between 1950s and 1960s, but later the modern restorant building was constructed.