Original sentence: Gülsün lastly taught the General Education class titled "Art in Europe" in both Bahçeşehir University and Yıldız Technical University while continuing his Curatorship at Dolmabahçe Palace.Hakan Gülsün (1960-2009) was a Turkish art historian, Ph.Hakan Gülsün died of heart failure on 9 June 2009.He had been a curator at the Dolmabahçe Palace in Istanbul since 1986
Edited sentence: Gülsün is currently teaching the General Education class titled "Art in Europe" in both Bahçeşehir University and Yıldız Technical University while continuing his Curatorship at Dolmabahçe Palace.Hakan Gülsün (born 1960) is a Turkish art historian, Ph.Since 1986, he has been a curator at the Dolmabahçe Palace in Istanbul