Question: who is nico rosberg driving for in 2017
[{'answer': 'Mercedes', 'provenance': [{'wikipedia_id': '1628331', 'title': 'Nico Rosberg', 'start_paragraph_id': 1, 'start_character': 158, 'end_paragraph_id': 1, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1628331', 'title': 'Nico Rosberg', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 124, 'bleu_score': 0.8970773746801091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8475274661622915371}, 'section': 'Section::::Abstract.'}]}]