Question: who took a firm stand in the boston police strike
[{'answer': 'Police Commissioner Edwin Upton Curtis', 'provenance': [{'wikipedia_id': '1977383', 'title': 'Boston Police Strike', 'start_paragraph_id': 1, 'start_character': 185, 'end_paragraph_id': 1, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1977383', 'title': 'Boston Police Strike', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 527, 'bleu_score': 0.9757530668325981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13421305629066250863}, 'section': 'Section::::Abstract.'}]}]