context: Gwangju Biennale is a biennial exhibition of contemporary installation art in Gwangju, South Korea. Biennale is a biennial event. The first Gwangju Biennale began in September 1995 and the 11th Biennale was held in 2016. It is the first biennale in Asia. In 2014, he was named as one of the world's five largest biennales in the world's 20th Biennale, selected by the world's prestigious Internet art media Artnet. [One]
question: How many years does the Gwangju Biennale take place?
answers.text: biennial