Question: who is the lead singer in sleeping with sirens
[{'answer': 'Kellin Quinn', 'provenance': [{'wikipedia_id': '27633438', 'title': 'Sleeping with Sirens', 'start_paragraph_id': 1, 'start_character': 145, 'end_paragraph_id': 1, 'end_character': 157, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27633438', 'title': 'Sleeping with Sirens', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 969, 'bleu_score': 0.648335003843531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9388148762008671543}, 'section': 'Section::::Abstract.'}]}]