Question: who defended the soldiers involved in the boston massacre during their trial
[{'answer': 'John Adams', 'provenance': [{'wikipedia_id': '82254', 'title': 'Boston Massacre', 'start_paragraph_id': 3, 'start_character': 308, 'end_paragraph_id': 3, 'end_character': 318, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '82254', 'title': 'Boston Massacre', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 507, 'bleu_score': 0.589437041929134, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17090687315772153330}, 'section': 'Section::::Abstract.'}]}]