Question: who took part in the battle of waterloo
[{'answer': 'French army', 'provenance': [{'wikipedia_id': '4356', 'title': 'Battle of Waterloo', 'start_paragraph_id': 1, 'start_character': 145, 'end_paragraph_id': 1, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'British - led Allied army'}, {'answer': 'Prussian army', 'provenance': [{'wikipedia_id': '4356', 'title': 'Battle of Waterloo', 'start_paragraph_id': 1, 'start_character': 334, 'end_paragraph_id': 1, 'end_character': 347, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'two of the armies of the Seventh Coalition'}, {'provenance': [{'wikipedia_id': '4356', 'title': 'Battle of Waterloo', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 420, 'bleu_score': 0.793201618093586, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10311707754002506608}, 'section': 'Section::::Abstract.'}]}]