Question: who is the lead singer of portugal the man
[{'answer': 'John Baldwin Gourley', 'provenance': [{'wikipedia_id': '47111800', 'title': 'John Gourley', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47111800', 'title': 'John Gourley', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 355, 'bleu_score': 0.8978065251965641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10703831416432565793}, 'section': 'Section::::Abstract.'}]}]