Question: who was the author of the art of war
[{'answer': 'Sun Tzu', 'provenance': [{'wikipedia_id': '65837', 'title': 'The Art of War', 'start_paragraph_id': 1, 'start_character': 200, 'end_paragraph_id': 1, 'end_character': 207, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': "the ancient Chinese military strategist Sun Tzu ( `` Master Sun '' , also spelled Sunzi )"}, {'answer': 'attributed to the ancient Chinese military strategist Sun Tzu'}, {'provenance': [{'wikipedia_id': '65837', 'title': 'The Art of War', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 710, 'bleu_score': 0.8332175840493651, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16054491306654640098}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3618023', 'title': 'The Art of War (disambiguation)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Sun Tzu', 'The Art of War is a highly influential ancient Chinese military treatise attributed to Sun Tzu', 'The Art of War is a highly influential ancient Chinese military treatise attributed to Sun Tzu.']}}]}, {'provenance': [{'wikipedia_id': '65837', 'title': 'The Art of War', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Sun Tzu', 'The Art of War is an ancient Chinese military treatise dating from the Late Spring and Autumn Period (roughly 5th century BC).', 'The work, which is attributed to the ancient Chinese military strategist Sun Tzu ("Master Sun", also spelled Sunzi), is composed of 13 chapters.']}}]}]