Task: Text Simplification
Input (English): structure and rules a match between two opponents consists of up to eleven alternating rounds of boxing and chess sessions , starting with a four-minute chess round followed by three minutes of boxing and so on.
Output (English): 1 . structure and rules a match between two opponents consists of , at most , eleven on and off rounds of boxing and chess sessions , starting with a four-minute chess round followed by three minutes of boxing and so on.