Complex sentence: TUI Group has 70 737 MAXs on order for the group, the order consists of a mix of the 737 MAX 8, and MAX 10 and some of these will be used for the airline to modernise the fleet and replace older aircraft.
Split into simpler sentences: TUI Group has 70 737 MAXs on order for the group. Some of these will be used for the airline to modernise the fleet and replace older aircraft.