Question: when did the national american woman suffrage association end
[{'answer': 'February 14 , 1920', 'provenance': [{'wikipedia_id': '391282', 'title': 'National American Woman Suffrage Association', 'start_paragraph_id': 171, 'start_character': 172, 'end_paragraph_id': 171, 'end_character': 190, 'bleu_score': 1.0, 'section': 'Section::::Second Catt presidency.:Transition into the League of Women Voters.\n'}]}, {'provenance': [{'wikipedia_id': '391282', 'title': 'National American Woman Suffrage Association', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 779, 'bleu_score': 0.984062469849008, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2317706040313480621}, 'section': 'Section::::Abstract.'}]}]