Question: who fought for boxing world heavyweight title at the 1974 match known as the rumble in the jungle
[{'answer': 'Muhammad Ali', 'provenance': [{'wikipedia_id': '188163', 'title': 'The Rumble in the Jungle', 'start_paragraph_id': 1, 'start_character': 280, 'end_paragraph_id': 1, 'end_character': 292, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'George Foreman', 'provenance': [{'wikipedia_id': '188163', 'title': 'The Rumble in the Jungle', 'start_paragraph_id': 1, 'start_character': 246, 'end_paragraph_id': 1, 'end_character': 260, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '188163', 'title': 'The Rumble in the Jungle', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 454, 'bleu_score': 0.600850994287466, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7291119018254995465}, 'section': 'Section::::Abstract.'}]}]