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: When Thriller and "Billie Jean" were searching to reach their market demographic, MTV and cable TV had a smaller market share than the much larger reach of broadcast television stations in the United States. A national broadcast TV audience on ABC, NBC and CBS affiliate stations, as well as major independent TV stations, was desired by CBS/Epic Records to promote Thriller. The national broadcast TV premiere of the Thriller album's first video, "Billie Jean", was during the week of Halloween in October 1984 and was the idea of Video Concert Hall executive producers Charles Henderson and Jerry Crowe. Video Concert Hall, the first nationwide music video TV network, taped the one-hour special in Hollywood and Atlanta, where the TV studios of Video Concert Hall were located. The Thriller TV special was hosted by Thriller video co-star Vincent Price, distributed by Henderson-Crowe Syndications, Inc. and aired in the top 20 TV markets and much of the United States, including TV stations WNEW (New York), WFLD (Chicago), KTTV (Los Angeles), WPLG (Miami), WQTV (Boston) and WXIA (Atlanta), for a total of 150 TV stations.From the moment Thriller was released, it set the standard for the music industry: artists, record labels, producers, marketers and even choreographers. The music video was ahead of its time and it is considered a monumental onenot only in Jackson's career, but also in the history of pop music. Epic Records' approach to creating a song and video that would appeal to the mass market ended up influencing the way that professionals now market and release their songs. John Landis' production of a mini-movie, rather than the usual short music video, would raise the bar for other directors and producers.

Output: What music video was ahead of its time and it is considered a monumental one in the history of pop music?

Input: Consider Input: Passage: The Norwegian Bratvaag expedition, studying the glaciers and seas of the Svalbard archipelago from the Norwegian sealing vessel Bratvaag of Alesund, found the remains of the Andree expedition on 5 August 1930. Kvitya was usually inaccessible to the sealing or whaling ships of the time, as it is typically surrounded by a wide belt of thick polar ice and often hidden by thick ice fogs. However, summer in 1930 had been particularly warm, and the surrounding sea was practically free of ice. As Kvitya was known to be a prime hunting ground for walrus and the fogs over the island on that day were comparatively thin, some of the crew of the Bratvaag took this rare opportunity to land on what they called the "inaccessible island".Two of the sealers in search of water, Olav Salen and Karl Tusvick, discovered Andree's boat near a small stream, frozen under a mound of snow and full of equipment, including a boathook engraved with the words "Andree's Polar Expedition, 1896". Presented with this hook, the Bratvaag's captain, Peder Eliassen, assigned the crew to search the site together with the expedition members. Among other finds, they uncovered a journal and two skeletons, identified as Andree's and Strindberg's remains by monograms found on their clothing.The Bratvaag left the island to continue its scheduled hunting and observations, with the intent of coming back later to see if the ice had melted further and uncovered more artifacts. Further discoveries were made by the M/K Isbjrn of Troms, a sealing sloop chartered by news reporters to waylay the Bratvaag. Unsuccessful in this, the reporters and the Isbjrn crew made instead for Kvitya, landing on the island on 5 September in fine weather and finding even less ice than the Bratvaag had. After photographing the area, they searched for and found Frnkel's body, and additional artifacts, including a tin box containing Strindberg's photographic film, his logbook, and maps. The crews of both ships turned over their finds to a scientific commission of the Swedish and Norwegian governments in Troms on 2 and 16 September, respectively. The bodies of the three explorers were transported to Stockholm, arriving on 5 October.

Output: Who uncovered a journal and two skeletons?

Input: Consider Input: Passage: In the spring of 1948 Pei was recruited by New York real estate magnate William Zeckendorf to join a staff of architects for his firm of Webb and Knapp to design buildings around the country. Pei found Zeckendorf's personality the opposite of his own; his new boss was known for his loud speech and gruff demeanor. Nevertheless, they became good friends and Pei found the experience personally enriching. Zeckendorf was well connected politically, and Pei enjoyed learning about the social world of New York's city planners.His first project for Webb and Knapp was an apartment building with funding from the Housing Act of 1949. Pei's design was based on a circular tower with concentric rings. The areas closest to the supporting pillar handled utilities and circulation; the apartments themselves were located toward the outer edge. Zeckendorf loved the design and even showed it off to Le Corbusier when they met. The cost of such an unusual design was too high, however, and the building never moved beyond the model stage.
Pei finally saw his architecture come to life in 1949, when he designed a two-story corporate building for Gulf Oil in Atlanta, Georgia. The building was demolished in February 2013 although the front facade will be retained as part of an apartment development. His use of marble for the exterior curtain wall brought praise from the journal Architectural Forum. Pei's designs echoed the work of Mies van der Rohe in the beginning of his career as also shown in his own weekend-house in Katonah in 1952. Soon Pei was so inundated with projects that he asked Zeckendorf for assistants, which he chose from his associates at the GSD, including Henry N. Cobb and Ulrich Franzen. They set to work on a variety of proposals, including the Roosevelt Field Shopping Mall. The team also redesigned the Webb and Knapp office building, transforming Zeckendorf's office into a circular space with teak walls and a glass clerestory. They also installed a control panel into the desk that allowed their boss to control the lighting in his office. The project took one year and exceeded its budget, but Zeckendorf was delighted with the results.
Output: What are the last names of the people that were chosen to become associates by the real estate magnate that was well connected politically?