Sentence:  Mirai Nagasu, like Zhang a promising 14-year-old, showed equally astonishing flexibility on a <WSD>layback</WSD> spin Wednesday, leaning so far that the back of her head nearly touched her backside.Image:Crack climbing layback left.jpg 
Meaning of the word marked with <WSD> tags:  A spin in which the head and shoulders are dropped backwards and the back arched downwards toward the ice. Also called a layback spin