Question: who sang mother of mine on opportunity knocks
[{'answer': 'Neil Reid', 'provenance': [{'wikipedia_id': '4886317', 'title': 'Neil Reid', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4886317', 'title': 'Neil Reid', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 187, 'bleu_score': 0.9419661180380051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3888828877157180074}, 'section': 'Section::::Abstract.'}]}]