instruction:
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.
question:
Passage: Geophysicist Dr. Josh Keyes and scientists Dr. Serge Leveque and Dr. Conrad Zimsky become aware of an instability of Earth's magnetic field after a series of bizarre incidents across the globe. They determine that the Earth's molten core, which generates this field, has stopped rotating and that, within a year, the field will collapse, exposing the planet's surface directly to devastating solar radiation. Backed by the U.S. Government, Keyes, Leveque, and Zimsky create a plan to bore down to the core and set off several nuclear explosions to restart the rotation. They gain the help of rogue scientist Dr. Ed "Braz" Brazzelton, who has devised a vessel made of "Unobtainium" that can withstand the heat and pressure within the Earth's crust and convert it to energy, as well as a laser-driven boring system that will allow them to quickly pass through the crust.
Construction starts immediately on the Virgil, a multi-compartment vessel to be helmed by Space Shuttle Endeavour pilots Commander Robert Iverson and Major Rebecca "Beck" Childs, who will join Keyes and the others. To prevent a worldwide panic, Keyes enlists computer hacker Theodore Donald "Rat" Finch to scour the Internet and eliminate all traces of the pending disaster or their plan.
answer:
What three people find out about the world's impending doom?

question:
Passage: The movie follows a man's search for perfection in a world where life rarely measures up to the idealized images that constantly bombard us. Gary Shaller, who gained commercial success in previous years as the keyboard player in the fictional band "On The One" is in a failing marriage with Dora, and working for his former band mate Paul, writing and recording commercial jingles. Gary eventually discovers that he is having lucid dreams about a glamorous woman named Anna, with whom he is deeply infatuated. He aims to learn more about lucid dreaming by buying books and even attending classes taught by an eccentric lucid-dreaming enthusiast, Mel.
Gary eventually discovers that the girl he dreams about does, in fact, exist. Paul arranges for Gary to meet her, but this proves disappointing, as she fails to live up to the expectations that Gary has built up in his dreams of her. He eventually continues to dream about her, and even soundproofs his apartment, and makes other efforts to be able to sleep longer, so that he can remain with Anna for longer periods of time. Eventually, feeling as though he is betraying Dora, he attempts to go back to her.
answer:
What is the full name of the character who buys books about lucid dreaming?

question:
Passage: There have been railways in Portland since the early 19th century. The Merchant's Railway was the earliestit opened in 1826 (one year after the Stockton and Darlington railway) and ran from the quarries at the north of Tophill to a pier at Castletown, from where the Portland stone was shipped around the country. The Weymouth and Portland Railway was laid in 1865, and ran from a station in Melcombe Regis, across the Fleet and along the low isthmus behind Chesil Beach to a station at Victoria Square in Chiswell. At the end of the 19th century the line was extended to the top of the island as the Easton and Church Ope Railway, running through Castletown and ascending the cliffs at East Weares, to loop back north to a station in Easton. The line closed to passengers in 1952, and the final goods train (and two passenger 'specials') ran in April 1965.The Royal National Institution for the Preservation of Life from Shipwreck stationed a lifeboat at Portland in 1826, which was withdrawn in 1851. Coastal flooding has affected Portland's residents and transport for centuriesthe only way off the island by land is along the causeway in the lee of Chesil Beach. At times of extreme floods (about every 10 years) this road link is cut by floods. The low-lying village of Chiswell used to flood on average every 5 years. Chesil Beach occasionally faces severe storms and massive waves, which have a fetch across the Atlantic Ocean. Following two severe flood events in the 1970s, Weymouth and Portland Borough Council and Wessex Water decided to investigate the structure of the beach, and coastal management schemes that could be built to protect Chiswell and the beach road. In the 1980s it was agreed that a scheme to protect against a one-in-five-year storm would be practicable; it would reduce flood depth and duration in more severe storms. Hard engineering techniques were employed in the scheme, including a gabion running 550 metres (600 yd) to the north of Chiswell, an extended sea wall in Chesil Cove, and a culvert running from inside the beach, underneath the beach road and into Portland Harbour, to divert flood water away from low-lying areas.
answer:
Where was an extended sea wall built in the city where coastal flooding has affected residents for centuries?