Question: when does the 16 days of activism campaign start
[{'answer': '25 November', 'provenance': [{'wikipedia_id': '44621834', 'title': '16 Days of Activism against Gender-based Violence', 'start_paragraph_id': 1, 'start_character': 160, 'end_paragraph_id': 1, 'end_character': 171, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44621834', 'title': '16 Days of Activism against Gender-based Violence', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 428, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10024029910844501460}, 'section': 'Section::::Abstract.'}]}]