With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Charlize Theron starred in a 2015 mystery thriller.
text_B: Suburban Express is a bus service that provides transport services to students at six universities in the American Midwest , primarily to and from the Chicago area .. American Midwest. Midwestern United States. Airport shuttles are operated under the name `` Illini Shuttle '' .. The company contracts buses from other carriers , and is based in Champaign , Illinois .. In the 1980s , Suburban Express broke the bus monopoly that Greyhound had between Champaign and Chicago leading to a price war that cut student fares by more than half .. monopoly. monopoly. Greyhound. Greyhound Lines. price war. competition ( economics ). Since 1994 , it has filed at least 200 lawsuits over alleged violations of its terms of service , leading students to criticize the bus service online .
not_related.