Question: where is before i go to sleep filmed
[{'answer': 'London', 'provenance': [{'wikipedia_id': '37287244', 'title': 'Before I Go to Sleep (film)', 'start_paragraph_id': 14, 'start_character': 21, 'end_paragraph_id': 14, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Production.:Filming.\n'}]}, {'answer': 'Twickenham Studios', 'provenance': [{'wikipedia_id': '37287244', 'title': 'Before I Go to Sleep (film)', 'start_paragraph_id': 14, 'start_character': 35, 'end_paragraph_id': 14, 'end_character': 53, 'bleu_score': 1.0, 'section': 'Section::::Production.:Filming.\n'}]}, {'provenance': [{'wikipedia_id': '37287244', 'title': 'Before I Go to Sleep (film)', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 53, 'bleu_score': 0.8070557274927981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2174779691035469303}, 'section': 'Section::::Production.:Filming.\n'}]}]