Question: who tells oedipus that he will kill his father and marry his mother
[{'answer': 'oracle at Delphi', 'provenance': [{'wikipedia_id': '77363', 'title': 'Oedipus', 'start_paragraph_id': 3, 'start_character': 376, 'end_paragraph_id': 3, 'end_character': 392, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '77363', 'title': 'Oedipus', 'start_paragraph_id': 3, 'start_character': 12, 'end_paragraph_id': 3, 'end_character': 939, 'bleu_score': 0.795147948382658, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4768689862872457825}, 'section': 'Section::::Abstract.'}]}]