Question: when did the lion king open in london
[{'answer': 'October 19 , 1999', 'provenance': [{'wikipedia_id': '3234366', 'title': 'The Lion King (musical)', 'start_paragraph_id': 49, 'start_character': 84, 'end_paragraph_id': 49, 'end_character': 101, 'bleu_score': 1.0, 'section': 'Section::::Production history.:Europe.:United Kingdom.\n'}]}, {'provenance': [{'wikipedia_id': '3234366', 'title': 'The Lion King (musical)', 'start_paragraph_id': 49, 'start_character': 0, 'end_paragraph_id': 49, 'end_character': 568, 'bleu_score': 0.9804854598160591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15580713111633714697}, 'section': 'Section::::Production history.:Europe.:United Kingdom.\n'}]}]