Question: where was the summer olympics held in 2012
[{'answer': 'London', 'provenance': [{'wikipedia_id': '2176142', 'title': '2012 Summer Olympics', 'start_paragraph_id': 1, 'start_character': 87, 'end_paragraph_id': 1, 'end_character': 93, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'London , United Kingdom', 'provenance': [{'wikipedia_id': '2176142', 'title': '2012 Summer Olympics', 'start_paragraph_id': 1, 'start_character': 187, 'end_paragraph_id': 1, 'end_character': 210, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2176142', 'title': '2012 Summer Olympics', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 439, 'bleu_score': 0.9383908431221111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6737962414379070426}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31590480', 'title': 'Paraguay at the 2012 Summer Olympics', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ["Paraguay competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's eleventh appearance at the Olympics, except the 1980 Summer Olympics in Moscow because of its partial support to the United States boycott. Comité Olímpico Paraguayo sent a total of 8 athletes, an equal share between men and women, to compete in 6 sports. Javelin thrower Leryn Franco, who competed at her third Olympics, was considered one of the most beautiful women in these Olympic Games, because of her professional career as a model and a beauty pageant contestant. Freestyle swimmer Benjamin Hockin, who played for Great Britain in Beijing, and embraced British roots to represent his mother's home land, became the nation's flag bearer at the opening ceremony. Paraguay, however, failed to win a single Olympic medal in London, since the 2004 Summer Olympics in Athens, where the men's football team won the silver.", 'at the 2012 Summer Olympics in London', "Paraguay competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's eleventh appearance at the Olympics, except the 1980 Summer Olympics in Moscow because of its partial support to the United States boycott. Comité Olímpico Paraguayo sent a total of 8 athletes, an equal share between men and women, to compete in 6 sports. Javelin thrower Leryn Franco, who competed at her third Olympics, was considered one of the most beautiful women in these Olympic Games, because of her professional career as a model and a beauty pageant contestant. Freestyle swimmer Benjamin Hockin, who played for Great Britain in Beijing, and embraced British roots to represent his mother's home land, became the nation's flag bearer at the opening ceremony. Paraguay, however, failed to win a single Olympic medal in London, since the 2004 Summer Olympics in Athens, where the men's football team won the silver."]}}]}, {'provenance': [{'wikipedia_id': '2176142', 'title': '2012 Summer Olympics', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ["The 2012 Summer Olympics, formally the Games of the XXX Olympiad and commonly known as London 2012, was an international multi-sport event that was held from 27 July to 12 August 2012 in London, United Kingdom. The first event, the group stage in women's football, began on 25 July at the Millennium Stadium in Cardiff, followed by the opening ceremonies on 27 July. 10,768 athletes from 204 National Olympic Committees (NOCs) participated.", 'The 2012 Summer Olympics, formally the Games of the XXX Olympiad and commonly known as London 2012, was an international multi-sport event that was held from 27 July to 12 August 2012 in London, United Kingdom', "The 2012 Summer Olympics, formally the Games of the XXX Olympiad and commonly known as London 2012, was an international multi-sport event that was held from 27 July to 12 August 2012 in London, United Kingdom. The first event, the group stage in women's football, began on 25 July at the Millennium Stadium in Cardiff, followed by the opening ceremonies on 27 July. 10,768 athletes from 204 National Olympic Committees (NOCs) participated."]}}]}, {'provenance': [{'wikipedia_id': '32210370', 'title': 'Armenia at the 2012 Summer Olympics', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['2012 Summer Olympics in London, United Kingdom', "Armenia competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's fifth consecutive appearance at the Olympics in the post-Soviet era."]}}]}, {'provenance': [{'wikipedia_id': '31590664', 'title': 'Sweden at the 2012 Summer Olympics', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['2012 Summer Olympics in London', 'Sweden competed at the 2012 Summer Olympics in London, from 25 July to 12 August 2012. Swedish athletes have competed at every edition of the Summer Olympic Games in the modern era, except for the sparsely attended 1904 Summer Olympics in St. Louis. The Swedish Olympic Committee (, "SOK") sent a total of 134 athletes to the Games, 55 men and 79 women, to compete in 20 sports. For the second consecutive time in its Olympic history, Sweden was represented by more female than male athletes. Sweden']}}]}]