Question: In 2006, for emissions reasons, India Yamaha Motor replaced its RX 100 two-stroke motorcycle with the Yamaha Crux. What type of engine does the Crux have?
{'answer': 'four-stroke', 'supporting_facts': [['Yamaha Crux', 0], ['Yamaha Crux', 2], ['Yamaha RX 100', 0]]}