Question: who were the presidents that signed the declaration of independence
[{'answer': 'Thomas Jefferson', 'provenance': [{'wikipedia_id': '32226668', 'title': 'Signing of the United States Declaration of Independence', 'start_paragraph_id': 4, 'start_character': 235, 'end_paragraph_id': 4, 'end_character': 251, 'bleu_score': 1.0, 'section': 'Section::::Date of signing.\n'}]}, {'answer': 'John Adams', 'provenance': [{'wikipedia_id': '32226668', 'title': 'Signing of the United States Declaration of Independence', 'start_paragraph_id': 4, 'start_character': 276, 'end_paragraph_id': 4, 'end_character': 286, 'bleu_score': 1.0, 'section': 'Section::::Date of signing.\n'}]}, {'provenance': [{'wikipedia_id': '32226668', 'title': 'Signing of the United States Declaration of Independence', 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 436, 'bleu_score': 0.970795021215021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12529839350233466624}, 'section': 'Section::::Signer details.\n'}]}]