Question: how much money does tourism bring to canada
[{'answer': 'US $17.4 billion', 'provenance': [{'wikipedia_id': '288026', 'title': 'Tourism in Canada', 'start_paragraph_id': 2, 'start_character': 62, 'end_paragraph_id': 2, 'end_character': 77, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '288026', 'title': 'Tourism in Canada', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 258, 'bleu_score': 0.950578622812921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6193893598118212151}, 'section': 'Section::::Abstract.'}]}]