Question: what do britain's got talent winners win
[{'answer': 'a cash prize', 'provenance': [{'wikipedia_id': '8517686', 'title': "Britain's Got Talent", 'start_paragraph_id': 2, 'start_character': 579, 'end_paragraph_id': 2, 'end_character': 591, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'an opportunity to perform at the Royal Variety Performance in front of members of the British Royal Family'}, {'provenance': [{'wikipedia_id': '8517686', 'title': "Britain's Got Talent", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 825, 'bleu_score': 0.5034953371001201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14784654810424470435}, 'section': 'Section::::Abstract.'}]}]