Question: how many geographical regions are there in canada
[{'answer': '8', 'provenance': [{'wikipedia_id': '5192', 'title': 'Geography of Canada', 'start_paragraph_id': 4, 'start_character': 35, 'end_paragraph_id': 4, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5192', 'title': 'Geography of Canada', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 553, 'bleu_score': 0.809114294469352, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14412902374987942057}, 'section': 'Section::::Physical geography.\n'}]}]