Question: what are the 3 fathers names in mamma mia
[{'answer': 'Sam', 'provenance': [{'wikipedia_id': '8425661', 'title': 'Mamma Mia! (film)', 'start_paragraph_id': 4, 'start_character': 373, 'end_paragraph_id': 4, 'end_character': 376, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'answer': 'Bill', 'provenance': [{'wikipedia_id': '8425661', 'title': 'Mamma Mia! (film)', 'start_paragraph_id': 4, 'start_character': 419, 'end_paragraph_id': 4, 'end_character': 423, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'answer': 'Harry', 'provenance': [{'wikipedia_id': '8425661', 'title': 'Mamma Mia! (film)', 'start_paragraph_id': 4, 'start_character': 453, 'end_paragraph_id': 4, 'end_character': 458, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '8425661', 'title': 'Mamma Mia! (film)', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 611, 'bleu_score': 0.814341306306383, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17732151298027127759}, 'section': 'Section::::Plot.\n'}]}]