Question: who sang maybe it's because i'm a londoner
[{'answer': 'Hubert Robert Harry Gregg', 'provenance': [{'wikipedia_id': '564754', 'title': 'Hubert Gregg', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '564754', 'title': 'Hubert Gregg', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 322, 'bleu_score': 0.96746874041754, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 305774346113941333}, 'section': 'Section::::Abstract.'}]}]