Complex sentence: Trained by Fred Rimell, E.S.B. was ridden by jockey Dave Dick in the 1956 running of the famous steeplechase at Aintree Racecourse when the race seemed certain to be won by Devon Loch, who held a five-length on the run-in.
Split into simpler sentences: Trained by Fred Rimell, E.S.B. was ridden by jockey Dave Dick in the 1956 running of the famous steeplechase at Aintree Racecourse. The race seemed certain to be won by Devon Loch, who held a five-length on the run-in.