Question: who did the zulus come into conflict with over their lands
[{'answer': 'British Empire', 'provenance': [{'wikipedia_id': '158145', 'title': 'Anglo-Zulu War', 'start_paragraph_id': 1, 'start_character': 50, 'end_paragraph_id': 1, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]