Read the following lead and identify its type:When Lan Weiguang first invested in the northeastern Chinese city of Siping in 2006, he was welcomed by the city mayor with open arms.But 13 years later the scientist-turned-businessman is desperate to get out after his multimillion dollar investment plunged him into a “long nightmare” that led to a prolonged battle with the city authorities, whom he accused of “gross unfairness” and illegal behaviour.