Question: where was the 2015 rugby union world cup held
[{'answer': 'England', 'provenance': [{'wikipedia_id': '4537429', 'title': '2015 Rugby World Cup', 'start_paragraph_id': 1, 'start_character': 134, 'end_paragraph_id': 1, 'end_character': 141, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Wales', 'provenance': [{'wikipedia_id': '4537429', 'title': '2015 Rugby World Cup', 'start_paragraph_id': 3, 'start_character': 399, 'end_paragraph_id': 3, 'end_character': 404, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4537429', 'title': '2015 Rugby World Cup', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 765, 'bleu_score': 0.9494174197170301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14442942097926407817}, 'section': 'Section::::Venues.\n'}]}, {'provenance': [{'wikipedia_id': '4537429', 'title': '2015 Rugby World Cup', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 347, 'bleu_score': 0.96746874041754, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14442942097926407817}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4537429', 'title': '2015 Rugby World Cup', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['England', 'The 2015 Rugby World Cup was the eighth Rugby World Cup, the quadrennial rugby union world championship. The tournament was hosted by England from 18 September to 31 October', 'The 2015 Rugby World Cup was the eighth Rugby World Cup, the quadrennial rugby union world championship. The tournament was hosted by England from 18 September to 31 October. Of the 20 countries competing in the World Cup in 2011, there was only one change: Uruguay replaced Russia.']}}]}, {'provenance': [{'wikipedia_id': '35058826', 'title': '2015 Rugby World Cup  repechage qualification', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['England', 'For the 2015 Rugby World Cup qualifying, there were three inter-confederation play-offs to determine the final qualification spot to the 2015 Rugby World Cup. The process ended with the 20th and final team to qualify for the World Cup. Four teams, the best non-qualifier from each region except Oceania, competed for the last place at the Rugby World Cup finals in England', 'The process ended with the 20th and final team to qualify for the World Cup. Four teams, the best non-qualifier from each region except Oceania, competed for the last place at the Rugby World Cup finals in England.']}}]}]