Complex sentence: A renowned Boer, Jopie Fourie, was executed for treason in 1914 when convicted as a rebel when, as an officer in the Union Defense Force, he refused to take up arms with the British.
Split into simpler sentences: A renowned Boer, Jopie Fourie, was executed for treason in 1914. He was convicted as a rebel when, as an officer in the Union Defense Force, he refused to take up arms with the British.