Question: who was president when the bill of rights was added to the constitution
[{'answer': 'George Washington', 'provenance': [{'wikipedia_id': '9119240', 'title': 'United States Bill of Rights', 'start_paragraph_id': 8, 'start_character': 416, 'end_paragraph_id': 8, 'end_character': 433, 'bleu_score': 1.0, 'section': 'Section::::Background.:Philadelphia Convention.\n'}]}, {'provenance': [{'wikipedia_id': '9119240', 'title': 'United States Bill of Rights', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 798, 'bleu_score': 0.984188478234951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5637841346123604827}, 'section': 'Section::::Background.:Philadelphia Convention.\n'}]}]