Question: who returned the knighthood conferred on him by british government after jalianwala bagh massacre
[{'answer': 'Mahatma Gandhi', 'provenance': [{'wikipedia_id': '7208646', 'title': 'Jallianwala Bagh massacre', 'start_paragraph_id': 11, 'start_character': 864, 'end_paragraph_id': 11, 'end_character': 878, 'bleu_score': 1.0, 'section': 'Section::::Background.:The Rowlatt act.\n'}]}, {'provenance': [{'wikipedia_id': '7208646', 'title': 'Jallianwala Bagh massacre', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 1722, 'bleu_score': 0.9736608071388361, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4261668790148655818}, 'section': 'Section::::Background.:The Rowlatt act.\n'}]}]