Question: who painted the signing of the declaration of independence
[{'answer': 'John Trumbull', 'provenance': [{'wikipedia_id': '6339612', 'title': 'Declaration of Independence (Trumbull)', 'start_paragraph_id': 1, 'start_character': 68, 'end_paragraph_id': 1, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]