Piet Retief Delegation massacre
{'<entity_0>': 'Piet Retief Delegation massacre', '<entity_1>': 'South Africa'}
[['Piet Retief Delegation massacre', 'country', 'South Africa']]
The <entity_0> was the 1838 killing of 100 Voortrekkers by the Zulu king Dingane in what is now KwaZulu-Natal, <entity_1>.
['massacre']