Demand for Italian vegetables has been growing in Japan for over 20 years. There are about 10,000 Italian-flagged restaurants at the door. Now a cargo plane arrives with fresh vegetables every week at Tokyo airport. But a group of farmers in the city of Kahoku in the northern prefecture of Yamagata has started growing radicchio, fennel, shallots and other vegetables that were previously unobtainable. They call themselves 'Team Italia'.