Question: who led the khasi revolt against the britishers
[{'answer': 'Tirot Sing', 'provenance': [{'wikipedia_id': '24394551', 'title': 'Anglo-Khasi War', 'start_paragraph_id': 1, 'start_character': 156, 'end_paragraph_id': 1, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '24394551', 'title': 'Anglo-Khasi War', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 386, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12765112461104424343}, 'section': 'Section::::Abstract.'}]}]