Question: what was the venue of 2015 cricket world cup's final match
[{'answer': 'Melbourne', 'provenance': [{'wikipedia_id': '7239', 'title': 'Cricket World Cup', 'start_paragraph_id': 9, 'start_character': 493, 'end_paragraph_id': 9, 'end_character': 502, 'bleu_score': 1.0, 'section': 'Section::::History.:Before the first Cricket World Cup.\n'}]}]