Question: when did nato forces take command in afghanistan
[{'answer': 'December 2001', 'provenance': [{'wikipedia_id': '194200', 'title': 'International Security Assistance Force', 'start_paragraph_id': 1, 'start_character': 153, 'end_paragraph_id': 1, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '194200', 'title': 'International Security Assistance Force', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 421, 'bleu_score': 0.9168060593278891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9897213732604044284}, 'section': 'Section::::Abstract.'}]}]