Original sentence: The running of the challenge is divided equally into seven rolls amongst the aerospace companies graduates:.These Roles are rotated annually to ensure a fresh ideas in the challenge at that one company is not stuck in the same role over a number of years.Traditionally participating schools have been split into 6 groups
Edited sentence: The running of the challenge is divided equally into seven rolls amongst the aerospace companies' graduates:.These roles are rotated annually to ensure a fresh ideas in the challenge at that one company is not stuck in the same role over a number of years.Traditionally, participating schools have been split into 6 groups