Complex sentence: The arena has 72 executive suites which can be rented for different events, 60 of these have an area of 27 to 40 m 2 and 12 suites have an area of 70 m 2.
Split into simpler sentences: The arena has 72 executive suites, which can be rented for different events. Of these, 60 have an area of between 27 and 40 m 2, and 12 have an area of 70 m 2.