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: Consider Input: Passage: Hilda Rix Nicholas (née Rix, later Wright, 1 September 1884 – 3 August 1961) was an Australian artist. Hilda Rix was born in the Victorian city of Ballarat. Her father was an education administrator and poet, her mother was a musician and artist. She studied under a leading member of the Heidelberg School, Frederick McCubbin, at the National Gallery of Victoria Art School from 1902 to 1905 and was an early member of the Melbourne Society of Women Painters and Sculptors. Following the death of her father in 1907, Hilda Rix, her only sibling Elsie and her mother travelled to Europe where she undertook further study in London and then in Paris. Her teachers during the period included John Hassall, Richard Emil Miller and Théophile Steinlen.
After travelling to Tangiers in 1912, Rix held several successful exhibitions of her work, with one drawing, Grande marche, Tanger, purchased by the French government. She was one of the first Australians to paint post-impressionist landscapes, was made a member of the Société des Peintres Orientalistes Français, and had works hung in the Paris Salon first in 1911 and again in 1913. The family evacuated from France to England after the outbreak of World War I. A period of personal tragedy followed, as Rix's sister died in 1914, then her mother in 1915. In 1916 she met and married George Matson Nicholas, only to be widowed the next month when he was killed on the Western Front.
Returning to Australia in 1918, Rix Nicholas once more took up professional painting, and held an exhibition of over a hundred works at Melbourne's Guild Hall. Many sold, including In Picardy, purchased by the National Gallery of Victoria. Following a period painting in rural locations in the early 1920s, Rix Nicholas returned to Europe. A 1925 exhibition in Paris led to the sale of her work In Australia to the Musée du Luxembourg, followed by an extensive tour of her paintings around regional British art galleries. There followed representation in other exhibitions, including at the International Society of Sculptors, Painters and Gravers, and the Royal Academy of Arts, both in London. Following the inclusion of several works in the 1926 Société Nationale des Beaux-Arts Spring exhibition in Paris she was made an Associate of that organisation.

Output: Who was killed on the Western Front?


Input: Consider Input: Passage: Ultrasonic tells the tale of Simon York – music teacher, married, soon to be father. Simon plays in a band and dreams of one day getting paid to write music. For now, however, money is tight and Simon shelling out $2000 to record an album is an additional cause of stress on his marriage to Ruth.
Jonas is Ruth's troubled brother and spends his days handing out flyers and trying to, "open peoples' eyes," to his theories of conspiracies and injustices in the world. One night Simon hears what he thinks is a very real sound in an alleyway. The sound does not disappear and remains audible from his house. Ruth doesn't hear it and she dismisses it, claiming that his ears are
ringing from years of loud music.
Jonas' reaction to Simon's ailment is much different than Ruth's. Jonas believes Simon and, after doing some research, believes that what Simon is hearing is in fact a government experiment, which utilizes an ultrasonic auditory signal to control the minds of all who hear it. Simon, with some prodding from Ruth, goes to visit an ear doctor who informs him that his test results show Simon's hearing to be least 6,000 Hz higher than the average human. This convinces Jonas that his theory is correct, and the two of them embark on a journey to get to the bottom of the sound experiment and stop the noise.

Output: Whose sister persuades the music teacher to have his ears checked?


Input: Consider Input: Passage: Ratanakiri or Ratanak Kiri (Khmer: រតនគិរី IPA: [ˌreə̯̆ʔ taʔ ˈnaʔ ki ˈriː]), is a province of northeast Cambodia. It borders the provinces of Mondulkiri to the south and Stung Treng to the west and the countries of Laos and Vietnam to the north and east, respectively. The province extends from the mountains of the Annamite Range in the north, across a hilly plateau between the Tonle San and Tonle Srepok rivers, to tropical deciduous forests in the south. In recent years, logging and mining have scarred Ratanakiri's environment, long known for its beauty.
For over a millennium, Ratanakiri has been occupied by the highland Khmer Loeu people, who are a minority elsewhere in Cambodia. During the region's early history, its Khmer Loeu inhabitants were exploited as slaves by neighboring empires. The slave trade economy ended during the French colonial era, but a harsh Khmerization campaign after Cambodia's independence again threatened Khmer Loeu ways of life.  The Khmer Rouge built its headquarters in the province in the 1960s, and bombing during the Vietnam War devastated the region. Today, rapid development in the province is altering traditional ways of life.
Ratanakiri is sparsely populated; its 184,000 residents make up just over 1% of the country's total population. Residents generally live in villages of 20 to 60 families and engage in subsistence shifting agriculture. Ratanakiri is among the least developed provinces of Cambodia. Its infrastructure is poor, and the local government is weak. Health indicators in Ratanakiri are extremely poor; men's life expectancy is 39 years, and women's is 43 years. Education levels are also low, with just under half of the population illiterate.


Output: How many people live in the province that borders the provinces of Mondulkiri to the south and Stung Treng to the west?