Question: what percentage of canada's economy is oil and gas
[{'answer': '2.9 % of GDP', 'provenance': [{'wikipedia_id': '5195', 'title': 'Economy of Canada', 'start_paragraph_id': 43, 'start_character': 127, 'end_paragraph_id': 43, 'end_character': 139, 'bleu_score': 1.0, 'section': 'Section::::Key industries.:Energy.\n'}]}, {'provenance': [{'wikipedia_id': '5195', 'title': 'Economy of Canada', 'start_paragraph_id': 43, 'start_character': 0, 'end_paragraph_id': 43, 'end_character': 886, 'bleu_score': 0.9860618656782161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14328657793686951129}, 'section': 'Section::::Key industries.:Energy.\n'}]}]