Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Example Input: Almost nothing is left of the Bastille except some remains of its stone foundation that were relocated to the side of the Boulevard Henri IV. Historians were critical of the Bastille in the early 19th century, and believe the fortress to have been a relatively well-administered institution, but deeply implicated in the system of French policing and political control during the 18th century.
Example Output: What material was used for Bastille?

Example Input: Newspaper columnist John Klein (Richard Gere) and his wife Mary (Debra Messing) are involved in an accident when Mary swerves to avoid a black, flying figure. John survives the crash unscathed, but Mary is hospitalized. After Mary dies of an unrelated brain tumor, John discovers mysterious drawings of the creature that she had created prior to the night of the accident. Two years later, John becomes lost in West Virginia and inexplicably finds himself in Point Pleasant, hundreds of miles off his route. Driving in the middle of the night, his car breaks down; and he walks to a nearby house to get help. The owner, Gordon Smallwood (Will Patton), reacts violently to John's appearance and holds him at gunpoint. Local police officer Connie Mills (Laura Linney) defuses the situation while Gordon explains that this is the third consecutive night John has knocked on his door asking to use a phone, much to John's confusion. John stays at a local motel and considers how he ended up so far from his original destination. Officer Mills mentions to John that many strange things have been occurring in the past few weeks and that people report seeing a large winged creature like a giant moth with red eyes. She also tells John about a strange dream she had, in which the words "Wake up, Number 37" were spoken to her. While conversing with Gordon one day, it is revealed to John that he had heard voices from his sink telling him that, in Denver, "99 will die". While discussing the day's events at a local diner, John notices that the news is showing a story on an airplane crash in Denver that killed all 99 passengers aboard. The next night, Gordon frantically explains that he had met the voices in his head, a being named Indrid Cold Later that night, Gordon calls John and says that he is standing with a character named Indrid Cold. While John keeps Cold on the line, Officer Mills checks on Gordon. Cold answers John's questions, convincing him that he is a supernatural being. This episode starts a string of supernatural calls to John's motel room. One tells him that there will be a great tragedy on the Ohio River. Later, John receives a call from Gordon and rushes to his home to check on him. He finds Gordon outside, dead from exposure. John becomes obsessed with the being, dubbed Mothman. He meets an expert on the subject, Alexander Leek (Alan Bates), who explains its nature and discourages John from becoming further involved. However, when John learns the governor (Murphy Dunne) plans to tour a chemical plant located on the Ohio River the following day, he becomes convinced the tragedy will occur there. Officer Mills and the governor ignore his warnings, and nothing happens during the tour. Soon afterwards, John receives a mysterious message that instructs him to await a call from his deceased wife Mary back in Georgetown, and he returns home. On Christmas Eve, Officer Mills calls and convinces him to ignore the phone call from "Mary", return to Point Pleasant, and join her. Though anguished, John agrees. As John reaches the Silver Bridge, a malfunctioning traffic light causes traffic congestion. As John walks onto the bridge to investigate, the bolts and supports of the bridge strain. The bridge comes apart, and John realizes that the prophesied tragedy on the Ohio River was about the bridge. As the bridge collapses, Officer Mills's car falls into the water. John jumps in after her and pulls her from the river and up to safety. As the two sit on the back of an ambulance, they see that 36 people have been killed, making Connie the "number 37" from her dream. The epilogue displays a series of graphics that state the cause of the bridge collapse was never fully determined. It also states that, although the Mothman has been sighted in other parts of the world, it was never seen again in Point Pleasant.
Example Output: Who is John's wife?

Example Input: From Britain to the Middle East and China, engineers and architects are pushing the boundaries of possibility as they strive to create the biggest and the best. Here are recently-selected seven wonders-to-be in the modern world which are near completion. Among these, Beijing Daxing International Airport ranks the first and Hong Kong-Zhuhai-Macau Bridge ranks the third. No.1 Beijing Daxing International Airport, China Beijing Daxing International Airport, which is set to be the biggest airport in the world, is designed by Iraqi-British architect Zaha Hadid. The new Terminal One will have a radial-like plan, designed to reduce passenger travel distances. The construction of the new airport started in 2015 and it is planned to be put into use in 2019. No.2 Kingdom Tower, Jeddah, Saudi Arabia Adrian Smith, the architect who has designed the highest structure in the world, the 829.8 m-high Burj Khalifa in Dubai, is now working on his new project which will smash his own record by this over-a-kilometer-high Kingdom Tower in Jeddah, Saudi Arabia. No one can be sure about the exact date of its completion but most probably the project will be ended in 2019. No.3 Hong Kong-Zhuhai-Macau Bridge, China At about 50 km long, Hong Kong-Zhuhai-Macau Bridge will take the title of the longest water span in the world from another China's bridge in Jiaozhou Bay. The construction started in 2009 and will complete the first session in 2017. No.4 Chernobyl reactor, Ukraine The engineers of the USSR who fought to bring the Chernobyl disaster under control built a concrete sarcophagus to cover the hole that had opened up above the destroyed reactor. A new steel arched structure is being built, to be rolled on rails over the reactor, from which point demolition work can begin using cranes suspended from the new roof. Most possibly it will be finished in 2020. No.5 Hotel Abraj Kudai, Mecca Every hajj, Mecca receives more than two million pilgrims from all over the world. New buildings are being built to accommodate these pilgrims. The Abraj Kudai cluster of towers will hold more than 10,000 hotel rooms. It is expected that the construction work will be put an end to in 2017. No.6 Crossrail, London Crossrail is built to link east and west London through the sewers, cables, and the city's foundations. After its completion in 2017, it is expected to alleviate traffic jams in London. No.7 Grand Stade FFR, Paris Grand Stade FFR is designed especially for the French Rugby Federation. The stadium can accommodate 82,000 fans and is dotted with retractable pitches (a marked out area of ground on which a sport is played). A retractable roof apparatus is capable of turning the stadium into a giant interior. Hopefully the fans can gather there to watch thrilling matches in 2018.
Example Output:
Which building is the highest existing building?