Question: who served as the 1st president of the national american woman suffrage association (nawsa)
[{'answer': 'Stanton', 'provenance': [{'wikipedia_id': '391282', 'title': 'National American Woman Suffrage Association', 'start_paragraph_id': 7, 'start_character': 85, 'end_paragraph_id': 7, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '391282', 'title': 'National American Woman Suffrage Association', 'start_paragraph_id': 51, 'start_character': 0, 'end_paragraph_id': 51, 'end_character': 313, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4536244801535300478}, 'section': 'Section::::Founding convention.\n'}]}]