Question: Gustave Adrian "Gus" Barnes (9 May 1877 – 14 March 1921) was an English violinist, painter and sculptor with a significant career in South Australia, notably as curator at which museum, located on the cultural boulevard of North Terrace in which city, the second largest state art collection Australia?
Sentence (from "Art Gallery of South Australia"): The Art Gallery of South Australia (AGSA), located on the cultural boulevard of North Terrace in Adelaide, is one of three significant visual arts museums in the Australian state of South Australia.
Relevant evidence: Yes