Question: when did the first lego set come out
[{'answer': '1949', 'provenance': [{'wikipedia_id': '18362', 'title': 'Lego', 'start_paragraph_id': 2, 'start_character': 66, 'end_paragraph_id': 2, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18362', 'title': 'Lego', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 857, 'bleu_score': 0.7903099748586101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6229435732635619402}, 'section': 'Section::::History.\n'}]}]