Question: who was the first pioneer social worker in america
[{'answer': 'Jane Addams', 'provenance': [{'wikipedia_id': '152277', 'title': 'Jane Addams', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '152277', 'title': 'Jane Addams', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1042, 'bleu_score': 0.505896747202998, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6107110603299363766}, 'section': 'Section::::Abstract.'}]}]