Question: who was crowned king of macedonia when he was 20
[{'answer': 'Alexander the Great', 'provenance': [{'wikipedia_id': '783', 'title': 'Alexander the Great', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '783', 'title': 'Alexander the Great', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 655, 'bleu_score': 0.736346712957471, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7258450360259558607}, 'section': 'Section::::Abstract.'}]}]