Complex sentence: It is also, and more commonly, refers to an annual symposium on the subject of sculpture, started in 1961 by the Slovenians Janez Lenassi and Jakob Savinšek.
Split into simpler sentences: It is also, and more commonly, refers to an annual symposium on the subject of sculpture. The project was started in 1961 by Slovenians Janez Lenassi and Jakob Savinšek.