Question: who is the girl who plays young maleficent
[{'answer': 'Ella Purnell', 'provenance': [{'wikipedia_id': '36127934', 'title': 'Maleficent (film)', 'start_paragraph_id': 14, 'start_character': 12, 'end_paragraph_id': 14, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]