Question: who was the group that staged the boston tea party
[{'answer': 'Sons of Liberty', 'provenance': [{'wikipedia_id': '4608353', 'title': 'Boston Tea Party', 'start_paragraph_id': 1, 'start_character': 67, 'end_paragraph_id': 1, 'end_character': 82, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4608353', 'title': 'Boston Tea Party', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 383, 'bleu_score': 0.528877480359866, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17994483751935520882}, 'section': 'Section::::Abstract.'}]}]