Question: who is the lead singer of the sweet
[{'answer': 'Brian Francis Connolly', 'provenance': [{'wikipedia_id': '1593492', 'title': 'Brian Connolly', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1593492', 'title': 'Brian Connolly', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 204, 'bleu_score': 0.7235766644152241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13140175764348366053}, 'section': 'Section::::Abstract.'}]}]