You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
Solution: Who believes Fagin's gang make wallets and handkerchiefs?.
Why? This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.

New input: Passage: Lancaster's career designing for the theatre began and ended with Gilbert and Sullivan. His first costumes and scenery were for the Sadler's Wells Ballet's Pineapple Poll (1951), John Cranko's ballet with a story based on a Gilbert poem and music by Sullivan. His last were for the D'Oyly Carte Opera Company's revival of The Sorcerer (1973). In between, he designed more productions for the Royal Ballet, as well as for Glyndebourne Festival Opera, the Old Vic and the West End. It was a matter of mild regret to him that of the twenty plays, operas and ballets that he designed between the two, only one was for a thoroughly serious piece, Britten's Peter Grimes, for the Bulgarian National Opera in Sofia in 1964.Only two of Lancaster's theatre designs have remained in use in 21st-century productions, both by the Royal Ballet: Pineapple Poll and La fille mal gardée. In an article on the latter in 2016, Danielle Buckley wrote, "Lancaster's surrealist and stylized designs for Fille amplify the story's pantomime quality, and the exaggerated burlesque of its comedy – but the backdrops of fields that roll into the distance, bundles of hay, dreamy skies and village cottages provide the idealized, pastoral context that the story needs". Buckley adds that Lancaster’s designs have been criticised for locating the ballet in no particular time or place – "except, that is, of a 1960s London view of idyllic country life".Lancaster's stated view was that stage sets and costumes should reflect reality, but "through a lens, magnifying and slightly over-emphasising everything which it reflects". Sir Geraint Evans commented on how Lancaster's designs helped the performer: "[His] design for Falstaff was superb: it gave me clues to understanding the character, and reflected that marvellous, subtle sense of humour which was present in all his work.".
Solution:
What is the name of the person whose first costumes and scenery were for the Sadler's Wells Ballet's Pineapple Poll?