Question: when did 10 downing street became the prime minister's residence
[{'answer': '1905', 'provenance': [{'wikipedia_id': '226294', 'title': '10 Downing Street', 'start_paragraph_id': 1, 'start_character': 352, 'end_paragraph_id': 1, 'end_character': 356, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '226294', 'title': '10 Downing Street', 'start_paragraph_id': 1, 'start_character': 57, 'end_paragraph_id': 1, 'end_character': 393, 'bleu_score': 0.789808364345248, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7937185331524412527}, 'section': 'Section::::Abstract.'}]}]