Question: who played poison ivy in batman and robin
[{'answer': 'Uma Thurman', 'provenance': [{'wikipedia_id': '4729', 'title': 'Batman & Robin (film)', 'start_paragraph_id': 1, 'start_character': 468, 'end_paragraph_id': 1, 'end_character': 479, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]