Question: when did ireland gain its independence from britain
[{'answer': 'December 1921', 'provenance': [{'wikipedia_id': '23426573', 'title': 'History of Ireland', 'start_paragraph_id': 79, 'start_character': 556, 'end_paragraph_id': 79, 'end_character': 569, 'bleu_score': 1.0, 'section': 'Section::::Home Rule, Easter Rising and War of Independence (1912–1922).\n'}]}, {'provenance': [{'wikipedia_id': '23426573', 'title': 'History of Ireland', 'start_paragraph_id': 79, 'start_character': 0, 'end_paragraph_id': 79, 'end_character': 1465, 'bleu_score': 0.9620122591633351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12596790502590896518}, 'section': 'Section::::Home Rule, Easter Rising and War of Independence (1912–1922).\n'}]}]