Question: who led the turkish counterattack at chunuk bair
[{'answer': 'Mustafa Kemal', 'provenance': [{'wikipedia_id': '436118', 'title': 'Battle of Chunuk Bair', 'start_paragraph_id': 2, 'start_character': 935, 'end_paragraph_id': 2, 'end_character': 948, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '436118', 'title': 'Battle of Chunuk Bair', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 934, 'bleu_score': 0.8924891221733721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9334089821994827325}, 'section': 'Section::::Abstract.'}]}]