Complex sentence: Each of the speakers'positions is based around a specific role: the third speaker, for example, has the opportunity to make a rebuttal towards the opposing team's argument by introducing new evidence to add to their position.
Split into simpler sentences: Each of the speakers'positions is based around a specific role. For example, the third speaker has the opportunity to make a rebuttal towards the opposing team's argument by introducing new evidence to add to their position.