Question: who did the voice of smaug in the hobbit
[{'answer': 'Benedict Cumberbatch', 'provenance': [{'wikipedia_id': '58101', 'title': 'Smaug', 'start_paragraph_id': 16, 'start_character': 105, 'end_paragraph_id': 16, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Adaptations.:"The Hobbit" (film series).\n'}]}, {'provenance': [{'wikipedia_id': '58101', 'title': 'Smaug', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 920, 'bleu_score': 0.9530372173901541, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9757996262123784394}, 'section': 'Section::::Adaptations.:"The Hobbit" (film series).\n'}]}]