Question: what is the biggest animal that ever lived on land
[{'answer': 'African bush elephant', 'provenance': [{'wikipedia_id': '20598041', 'title': 'Largest organisms', 'start_paragraph_id': 4, 'start_character': 230, 'end_paragraph_id': 4, 'end_character': 251, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20598041', 'title': 'Largest organisms', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 522, 'bleu_score': 0.721341533022256, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2992945885241539711}, 'section': 'Section::::Animals.\n'}]}]