Question: who are the candidates running for president in mexico
[{'answer': 'Ricardo Anaya Cortés', 'provenance': [{'wikipedia_id': '40284813', 'title': '2018 Mexican general election', 'start_paragraph_id': 11, 'start_character': 247, 'end_paragraph_id': 11, 'end_character': 267, 'bleu_score': 1.0, 'section': 'Section::::Presidential candidates.:"Por México al Frente".\n'}]}, {'answer': 'Andrés Manuel López Obrador', 'provenance': [{'wikipedia_id': '40284813', 'title': '2018 Mexican general election', 'start_paragraph_id': 3, 'start_character': 37, 'end_paragraph_id': 3, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'José Antonio Meade Kuribreña', 'provenance': [{'wikipedia_id': '40284813', 'title': '2018 Mexican general election', 'start_paragraph_id': 17, 'start_character': 38, 'end_paragraph_id': 17, 'end_character': 66, 'bleu_score': 1.0, 'section': 'Section::::Presidential candidates.:"Todos por México".\n'}]}, {'answer': 'Jaime Rodríguez Calderón', 'provenance': [{'wikipedia_id': '40284813', 'title': '2018 Mexican general election', 'start_paragraph_id': 30, 'start_character': 381, 'end_paragraph_id': 30, 'end_character': 405, 'bleu_score': 1.0, 'section': 'Section::::Presidential candidates.:Independents.\n'}]}]