Question: where did they find the boston marathon bombers
[{'answer': 'Watertown', 'provenance': [{'wikipedia_id': '39120733', 'title': 'Boston Marathon bombing', 'start_paragraph_id': 2, 'start_character': 304, 'end_paragraph_id': 2, 'end_character': 313, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '39120733', 'title': 'Boston Marathon bombing', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 515, 'bleu_score': 0.8405491156872501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1032380041892619530}, 'section': 'Section::::Abstract.'}]}]