The performance 'Three' took place on November 30th, 1978, at Harlekin Art in Wiesbaden, Germany. The third participant, which is implied by title of the piece, is a snake. Ulay and Abramovic were lying flat on their stomach in one room together with the animal, with which they were trying to make contact via an inventive system. By using a circuit made of wire, and blowing into a bottle or plucking the wire with their fingers, Ulay and Abramovic caused vibrations to be directed towards the snake.

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