Question: who sang those were the days my friend song
[{'answer': 'Gene Raskin', 'provenance': [{'wikipedia_id': '2456195', 'title': 'Those Were the Days (song)', 'start_paragraph_id': 1, 'start_character': 44, 'end_paragraph_id': 1, 'end_character': 55, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2456195', 'title': 'Those Were the Days (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 323, 'bleu_score': 0.8964173245779281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6271350098507721682}, 'section': 'Section::::Abstract.'}]}]