Question: who played the black mamba in kill bill
[{'answer': 'Uma Thurman', 'provenance': [{'wikipedia_id': '14996982', 'title': 'List of Kill Bill characters', 'start_paragraph_id': 4, 'start_character': 46, 'end_paragraph_id': 4, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::Deadly Viper Assassination Squad.:The Bride.\n'}]}, {'provenance': [{'wikipedia_id': '14996982', 'title': 'List of Kill Bill characters', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 477, 'bleu_score': 0.976327165973018, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17731126586239477487}, 'section': 'Section::::Deadly Viper Assassination Squad.:The Bride.\n'}]}]