Question: who did the browns pick number 1 in the draft
[{'answer': 'Baker Mayfield', 'provenance': [{'wikipedia_id': '10507569', 'title': 'List of Cleveland Browns first-round draft picks', 'start_paragraph_id': 1, 'start_character': 342, 'end_paragraph_id': 1, 'end_character': 356, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]