Question: how long is st. catherine street in montreal
[{'answer': '11.5 km or 7.1 mi'}, {'provenance': [{'wikipedia_id': '2171113', 'title': 'Saint Catherine Street', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 402, 'bleu_score': 0.8049000494328761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11059949203648124450}, 'section': 'Section::::Abstract.'}]}]