Question: who ran for the democratic nomination in 2016
[{'answer': 'Hillary Clinton', 'provenance': [{'wikipedia_id': '37643934', 'title': '2016 Democratic Party presidential candidates', 'start_paragraph_id': 4, 'start_character': 125, 'end_paragraph_id': 4, 'end_character': 140, 'bleu_score': 1.0, 'section': 'Section::::Major candidates.\n'}]}, {'answer': 'Bernie Sanders', 'provenance': [{'wikipedia_id': '37643934', 'title': '2016 Democratic Party presidential candidates', 'start_paragraph_id': 4, 'start_character': 159, 'end_paragraph_id': 4, 'end_character': 173, 'bleu_score': 1.0, 'section': 'Section::::Major candidates.\n'}]}]