Complex sentence: Albert bred horses after he moved to Hadley, particularly Polo ponies, which were exported to Europe and in 1910, Mrs Kingwell showed two brood mares at the annual Polo and Riding Pony Society show at the Agricultural Hall, London.
Split into simpler sentences: Albert bred horses after he moved to Hadley, particularly Polo ponies, which he exported to Europe. In 1910, Mrs Kingwell showed two brood mares at the annual Polo and Riding Pony Society show at the Agricultural Hall, London.