He picked up a random object or a sculpture, immersed this object into a pile of wet clay, took out the object, leaving out a hollow shape of the object inside this pile of clay.

• 他随意拿来一个东西或雕塑，把它插入一推湿泥之中，再取出来，这样就在湿泥中留下了该物体的形状，艺术家将之命名为“负空间”。