Question: when did northern ireland become its own country
[{'answer': '1921', 'provenance': [{'wikipedia_id': '21265', 'title': 'Northern Ireland', 'start_paragraph_id': 2, 'start_character': 32, 'end_paragraph_id': 2, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21265', 'title': 'Northern Ireland', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 789, 'bleu_score': 0.9759016469771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14269005101101797318}, 'section': 'Section::::Abstract.'}]}]