Complex sentence: The dispute over who is Australia's head of state centres on the question of whether the monarch or the governor-general is the country's head of state; the term "head of state" does not appear in the Australian constitution.
Split into simpler sentences: The dispute over who is Australia's head of state centres on the question of whether the monarch or the governor-general is the country's head of state. The term "head of state" does not appear in the Australian constitution.