Question: who are the candidates for new york city mayor
[{'answer': 'Bill de Blasio', 'provenance': [{'wikipedia_id': '47604581', 'title': '2017 New York City mayoral election', 'start_paragraph_id': 1, 'start_character': 88, 'end_paragraph_id': 1, 'end_character': 102, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Nicole Malliotakis', 'provenance': [{'wikipedia_id': '47604581', 'title': '2017 New York City mayoral election', 'start_paragraph_id': 1, 'start_character': 177, 'end_paragraph_id': 1, 'end_character': 195, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Sal Albanese', 'provenance': [{'wikipedia_id': '47604581', 'title': '2017 New York City mayoral election', 'start_paragraph_id': 4, 'start_character': 171, 'end_paragraph_id': 4, 'end_character': 183, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'answer': 'Bo Dietl', 'provenance': [{'wikipedia_id': '47604581', 'title': '2017 New York City mayoral election', 'start_paragraph_id': 7, 'start_character': 197, 'end_paragraph_id': 7, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}]