Question: who sang i have often walked down this street before
[{'answer': 'John Michael King', 'provenance': [{'wikipedia_id': '2794305', 'title': 'On the Street Where You Live', 'start_paragraph_id': 1, 'start_character': 234, 'end_paragraph_id': 1, 'end_character': 251, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Bill Shirley , dubbing for actor Jeremy Brett'}, {'provenance': [{'wikipedia_id': '2794305', 'title': 'On the Street Where You Live', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 365, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11340940185565415330}, 'section': 'Section::::Abstract.'}]}]