Sentence:  <WSD>Katas</WSD> are a series of motions, such as punches, strikes, and kicks, arranged in a specific pattern. The pattern allows the motions to flow into one another. A student must learn a new <WSD>kata</WSD> to advance to each new belt level. 
Meaning of the word marked with <WSD> tags:  Any of a sequence of positions and movements used in many martial arts.