Task: Question Generation
Input (English): Passage: The film is set in an alternative-history version of nineteenth century England where packs of wolves roam the countryside.
Bonnie Green is the spoiled daughter of Lord and Lady Willoughby, who live at the country estate of Willoughby Chase. Lady WIlloughby is ill, and her father plans to take a convalescence to the Mediterranean Sea. Meanwhile, in London, Bonnie's cousin, Sylvia, is leaving her Aunt Jane to keep Bonnie company while her parents are away. While travelling on a train, she meets a mysterious man named Grimshaw. At Willoughby Chase, a beautiful middle-aged woman arrives revealing herself to be Bonnie and Sylvia's fourth cousin and their new governess, Letitia Slighcarp.  The following morning, Bonnie sneaks into the carriage meant to pick up Sylvia, taking with her a rifle. When the train arrives at the station, Mr. Grimshaw is knocked unconscious after wolves attempt to attack the train. Bonnie and Sylvia take Mr. Grimshaw with them back to Willoughby Chase. Not soon after, Bonnie's parents leave for their convalescence aboard the Thessaly. The next day, Bonnie and Sylvia go out on a sleigh and almost are attacked by wolves until a boy named Simon, who lives in a cave and raises geese, rescues them. They return in the night to discover that Miss Slighcarp has dismissed all the servants except for James and Pattern.  During dinner, Miss Slighcarp refuses to give an explanation to the servants' dismissal, gives the girls oatmeal instead of the usual feast and she harshly reprimands Bonnie after she accidentally spills cream on her father's farewell letter, thus Bonnie begins to suspect her governess's true cold and evil nature.
Output (English): What are the names of the people who leave for the convalescence aboard the Thessaly?