Question: who plays billy the kid in young guns
[{'answer': 'Emilio Estevez', 'provenance': [{'wikipedia_id': '673694', 'title': 'Young Guns (film)', 'start_paragraph_id': 1, 'start_character': 180, 'end_paragraph_id': 1, 'end_character': 194, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]