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

[EX Q]: Weathering is the process that changes solid rock into sediments. Sediments were described in the chapter "Ma- terials of Earths Crust." With weathering, rock is disintegrated. It breaks into pieces. Once these sediments are separated from the rocks, erosion is the process that moves the sediments. While plate tectonics forces work to build huge mountains and other landscapes, the forces of weathering gradually wear those rocks and landscapes away. Together with erosion, tall mountains turn into hills and even plains. The Appalachian Mountains along the east coast of North America were once as tall as the Himalayas. No human being can watch for millions of years as mountains are built, nor can anyone watch as those same mountains gradually are worn away. But imagine a new sidewalk or road. The new road is smooth and even. Over hundreds of years, it will completely disappear, but what happens over one year? What changes would you see? (Figure 1.1). What forces of weathering wear down that road, or rocks or mountains over time? A once smooth road surface has cracks and fractures, plus a large pothole. Click image to the left or use the URL below. URL:
[EX A]: the process that changes solid rock into sediments.

[EX Q]: Sam Gillen (Van Damme) is a convict who gets sprung from Federal custody somewhere in the Midwest by his bank-robbing partner. In their last heist, Sam's partner killed a bank guard, and Sam took the rap for it. Sam's partner gets killed in the break, forcing Sam to go it alone in search of the loot, which is buried on the property of a farm inhabited by Clydie Anderson (Arquette), the widowed mother of two kids named Mike "Mookie" Anderson and Bree Anderson.Attempting to sneak into Clydie's house and "borrow" some salt for a campfire-broiled steak, Sam catches sight of Clydie taking a shower. The next morning, Sam is spotted bathing outdoors by Mookie. After saving Clydie, Mookie, and Bree from a trio of intruding thugs, Sam discovers that Clydie is holding out from selling her place to property developer Franklin Hale, who fears that he will be put out of business if he doesn't get Clydie's land so he can develop on it.Sam decides to hang around, sleeping first in Clydie's barn and then in her bed while repairing her late husband's Triumph motorcycle. And Hale hires an intimidation expert named Dunston, to force Clydie into selling her land. Secretly on Hale's payroll is corrupt sheriff Lonnie Cole, a sometime lover of Clydie.A jealous Lonnie discovers Sam's true identity and threatens to expose him if he doesn't leave. Not wanting to place Clydie in additional danger for helping a fugitive, Sam decides to leave, only to find that Hale has already blown the whistle on him in an attempt to get him out of the way. After evading police chasing him in cars, land rovers, helicopters, and on motorcycles and horseback, Sam returns to save Clydie from Dunston and Hale, who are planning to burn down her house.After fighting off the bad guys and getting Hale caught holding a gun to Clydie's head, he decides to turn himself in, rather than run away. He promises to be back to live with them.
[EX A]: Who spots Sam bathing outdoors ?

[EX Q]: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a small vessel disease of the brain caused by mutations in the NOTCH3 gene. CADASIL progresses, in some cases, to subcortical dementia with a particular cognitive impairment. Different diseases in the dementia spectrum share a central cholinergic and sensorimotor plasticity alteration. We aimed to study different intracortical circuits and sensorimotor plasticity in CADASIL patients using transcranial magnetic stimulation protocols, and to determine whether these characteristics correlated with the results of clinical neuropsychological evaluation. Ten CADASIL patients and 10 healthy subjects were included in the study. All subjects underwent a transcranial magnetic stimulation study examining different intracortical circuits. Sensorimotor plasticity was also assessed using a paired associative stimulation and extensive neuropsychological tests. CADASIL patients showed a lack of intracortical facilitation, short latency afferent inhibition and sensorimotor plasticity when compared with control subjects. CADASIL patients also showed an altered neuropsychological profile. Correlation between sensorimotor plasticity and neuropsychological alterations was observed in CADASIL patients. These results suggest that acetylcholine and glutamate could be involved in the dementia process in CADASIL and that abnormal sensorimotor plasticity correlates with the neuropsychological profile in CADASIL patients.
[EX A]:
Which gene is involved in CADASIL?