Question: which economic activity in new france created the greatest amount of income for france
[{'answer': 'North American fur trade', 'provenance': [{'wikipedia_id': '20850603', 'title': 'North American fur trade', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20850603', 'title': 'North American fur trade', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 778, 'bleu_score': 0.950071918120007, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7576544393907788775}, 'section': 'Section::::Abstract.'}]}]