Question: when is the alabama special election for senator
[{'answer': 'December 12 , 2017', 'provenance': [{'wikipedia_id': '52878007', 'title': '2017 United States Senate special election in Alabama', 'start_paragraph_id': 2, 'start_character': 370, 'end_paragraph_id': 2, 'end_character': 388, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '52878007', 'title': '2017 United States Senate special election in Alabama', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 489, 'bleu_score': 0.90854025853218, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10593155502952089829}, 'section': 'Section::::Abstract.'}]}]