Question: who was the lead singer of lyin eyes
[{'answer': 'Glenn Frey', 'provenance': [{'wikipedia_id': '8637528', 'title': "Lyin' Eyes", 'start_paragraph_id': 1, 'start_character': 49, 'end_paragraph_id': 1, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8637528', 'title': "Lyin' Eyes", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 368, 'bleu_score': 0.944041853942402, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4127795411944255420}, 'section': 'Section::::Abstract.'}]}]