Question: who holds the track record for belmont stakes
[{'answer': 'Secretariat', 'provenance': [{'wikipedia_id': '62398', 'title': 'Belmont Stakes', 'start_paragraph_id': 1, 'start_character': 788, 'end_paragraph_id': 1, 'end_character': 799, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]