Question: who was the dragon in once upon a time
[{'answer': 'Maleficent', 'provenance': [{'wikipedia_id': '45622178', 'title': 'Enter the Dragon (Once Upon a Time)', 'start_paragraph_id': 2, 'start_character': 124, 'end_paragraph_id': 2, 'end_character': 134, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '45622178', 'title': 'Enter the Dragon (Once Upon a Time)', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 853, 'bleu_score': 0.985764216565234, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4220047535459566993}, 'section': "Section::::Plot.:In the Characters' Past.\n"}]}]