Question: when did the kyoto protocol came into force
[{'answer': '16 February 2005', 'provenance': [{'wikipedia_id': '16775', 'title': 'Kyoto Protocol', 'start_paragraph_id': 1, 'start_character': 464, 'end_paragraph_id': 1, 'end_character': 480, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '16775', 'title': 'Kyoto Protocol', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 581, 'bleu_score': 0.9549078296250141, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17063037163812447572}, 'section': 'Section::::Abstract.'}]}]