In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
Q: Clay animation or claymation, sometimes plasticine animation, is one of many forms of stop motion animation. Each animated piece, either character or background, is 'deformable' -- made of a malleable substance, usually plasticine clay.
A: 
when do you call an animation a claymation