Question: who's the lead singer of talking heads
[{'answer': 'David Byrne', 'provenance': [{'wikipedia_id': '30456', 'title': 'Talking Heads', 'start_paragraph_id': 1, 'start_character': 115, 'end_paragraph_id': 1, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30456', 'title': 'Talking Heads', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 513, 'bleu_score': 0.957795280617293, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13132899080949741447}, 'section': 'Section::::Abstract.'}]}]