In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Q: Following this the Olympic torch is brought into the stadium and passed on until it reaches the final torch carrier who lights the cauldron .
A: 
Finally , the Olympic torch is brought into the stadium and passed on until it reaches the final torch carrier , often a successful Olympic athlete from the host nation , who lights the Olympic flame in the stadium 's cauldron .