Complex sentence: The siren at North Hobart sounded with Sorell three points ahead of Lauderdale, but the umpires failed to hear it and the timekeepers failed to keep the siren going.
Split into simpler sentences: The siren at North Hobart sounded with Sorell three points ahead of Lauderdale. The umpires failed to hear it and the timekeepers failed to keep the siren going.