Premise: Sir Douglas Ralph Nicholls, {'1': ", '2': ", '3': ", '4': "} (9 December 19064 June 1988) was a prominent Aboriginal Australian from the Yorta Yorta people. He was a professional athlete, Churches of Christ pastor and church planter, ceremonial officer and a pioneering campaigner for reconciliation.
Hypothesis: Nicholls campaigned for reconciliation of the Yorta Yorta with Australia.