Question: when did newfoundland become a part of canada
[{'answer': 'March 31 , 1949', 'provenance': [{'wikipedia_id': '21980', 'title': 'Newfoundland and Labrador', 'start_paragraph_id': 57, 'start_character': 761, 'end_paragraph_id': 57, 'end_character': 776, 'bleu_score': 1.0, 'section': 'Section::::History.:Commission of Government and confederation with Canada.\n'}]}, {'provenance': [{'wikipedia_id': '21980', 'title': 'Newfoundland and Labrador', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 473, 'bleu_score': 0.8613049228809371, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2494243281656235549}, 'section': 'Section::::Abstract.'}]}]