Question: dragon ball z who is the legendary super saiyan
[{'answer': 'Broly', 'provenance': [{'wikipedia_id': '1565282', 'title': 'Dragon Ball Z: Broly – The Legendary Super Saiyan', 'start_paragraph_id': 0, 'start_character': 15, 'end_paragraph_id': 0, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]