Task: Question Generation
Input (English): Passage: During the Korean War, the Soviets and Chinese capture a U.S. Army platoon and take it to Manchuria in communist China. Three days later, Staff Sergeant Raymond Shaw and Captain Bennett Marco manage to return to UN lines. Upon recommendation of the platoon's commander, Captain  Marco, Shaw is awarded the Medal of Honor for saving their lives in combat. Shaw returns to the United States to a hero's welcome where he is exploited by his mother, Mrs. Eleanor Iselin, on behalf of the political career of her husband and Shaw's stepfather, United States Senator John Yerkes Iselin. When asked to describe him, Marco and the other soldiers automatically respond, "Raymond Shaw is the kindest, bravest, warmest, most wonderful human being I've ever known in my life.", even though Shaw is a cold, sad, unsympathetic loner.
In the years to follow, Marco, who has since been promoted to major and assigned to Army Intelligence, suffers from a recurring nightmare. In it, a hypnotized Shaw blithely and brutally murders the two missing soldiers before an assembly of military leaders from the communist nations, during a practical demonstration of a revolutionary brainwashing technique. Marco is compelled to investigate, but with no solid evidence to back his claims fails to receive support from his uplines. However, Marco learns that another soldier from the platoon, Allen Melvin, has had the same nightmare. When Melvin and Marco separately identify the identical two men from their dreams as leading figures in communist governments, Army Intelligence agrees to help Marco investigate.
Output (English): Where is the group that Captain Marco commands prior to escape?