Question: when does britain's got talent 2013 start
[{'answer': '13 April', 'provenance': [{'wikipedia_id': '35735657', 'title': "Britain's Got Talent (series 7)", 'start_paragraph_id': 1, 'start_character': 122, 'end_paragraph_id': 1, 'end_character': 130, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '35735657', 'title': "Britain's Got Talent (series 7)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 967, 'bleu_score': 0.741184492839399, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7154406327986106470}, 'section': 'Section::::Abstract.'}]}]