Complex sentence: In the event, de Toledo was warned by umpires for steering too lose to the rival Cambridge squad after protestor Trenton Oldfield jumped into the water and protested against elitism and inequality in British society.
Split into simpler sentences: In the event, de Toledo was warned by umpires for steering too closely to the rival Cambridge squad. It came after protester Trenton Oldfield jumped into the water and protested against elitism and inequality in British society.