Question: who is ra al ghul in batman begins
[{'answer': 'Liam Neeson', 'provenance': [{'wikipedia_id': '481619', 'title': "Ra's al Ghul", 'start_paragraph_id': 3, 'start_character': 112, 'end_paragraph_id': 3, 'end_character': 123, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]