Question: when did the battle of bannockburn take place
[{'answer': '24 June 1314', 'provenance': [{'wikipedia_id': '50993', 'title': 'Battle of Bannockburn', 'start_paragraph_id': 1, 'start_character': 43, 'end_paragraph_id': 1, 'end_character': 55, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]