Question: when was the first female supreme court justice appointed
[{'answer': '1981', 'provenance': [{'wikipedia_id': '42640', 'title': "Sandra Day O'Connor", 'start_paragraph_id': 1, 'start_character': 136, 'end_paragraph_id': 1, 'end_character': 140, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '42640', 'title': "Sandra Day O'Connor", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 255, 'bleu_score': 0.7911293154202521, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2731008142978198369}, 'section': 'Section::::Abstract.'}]}]