Question: when did the original mamma mia come out
[{'answer': '1999', 'provenance': [{'wikipedia_id': '8425661', 'title': 'Mamma Mia! (film)', 'start_paragraph_id': 1, 'start_character': 166, 'end_paragraph_id': 1, 'end_character': 170, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8425661', 'title': 'Mamma Mia! (film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 859, 'bleu_score': 0.8550832688613821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12979882133121083931}, 'section': 'Section::::Abstract.'}]}]