Definition: 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.
Input: Passage: The Wrestlers is an oil painting on millboard by English artist William Etty, painted around 1840 and currently in the York Art Gallery, in York, England. It depicts a wrestling match between a black man and a white man, both glistening with sweat and under an intense light emphasising their curves and musculature. While little documentation of the painting exists prior to 1947, it is likely that it was painted over a period of three evenings at the life class of the Royal Academy.
The Royal Academy had moved to new premises in Trafalgar Square in 1837, and the studio used by the life class was cramped and hot, a fact thought to account for the sweatiness of the central figures. Etty was best known for his painting of nude or near-nude women in historical and mythological settings but had also painted men involved in various forms of combat.
In the period in which The Wrestlers was painted, sports were becoming increasingly popular, and the painting is both a reflection of this trend and a part of the English tradition of copying poses from classical Hellenistic works. It was also a time of change in the British attitude to race relations. Etty in this period was generally making a conscious effort to illustrate moral lessons in his work, and it is not clear whether he chose the topic as a form of social commentary or simply because the contrast between the black and white flesh tones was visually striking.
Although The Wrestlers was probably exhibited as part of a major retrospective of Etty's work in 1849, it then went into a private collection and was not publicly exhibited again for almost a century. In 1947 it was put on sale; with little interest from commercial galleries owing to its subject, it was bought for the bargain price of 30 guineas by the York Art Gallery, where it remains. The painting formed a part of major exhibitions in 2002 and 2011–12.
Output:
What painting does little documentation exist for?