Question: how many supreme court judges are there in canada
[{'answer': 'nine', 'provenance': [{'wikipedia_id': '4147096', 'title': 'List of Justices of the Supreme Court of Canada', 'start_paragraph_id': 1, 'start_character': 460, 'end_paragraph_id': 1, 'end_character': 464, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4147096', 'title': 'List of Justices of the Supreme Court of Canada', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 534, 'bleu_score': 0.8598438937757581, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12302013819159810979}, 'section': 'Section::::Abstract.'}]}]