input: Please answer the following: Read the following paragraph and extract the answer for the question: What were the names of the two rivers that had a dramatic drop in elevation? Up until the mid-19th century, long stretches of the Colorado and Green rivers between Wyoming and Nevada remained largely unexplored due to their remote location and dangers of navigation. Because of the dramatic drop in elevation of the two rivers, there were rumors of huge waterfalls and violent rapids, and Native American tales strengthened their credibility. In 1869, one-armed Civil War veteran John Wesley Powell led an expedition from Green River Station in Wyoming, aiming to run the two rivers all the way down to St. Thomas, Nevada, near present-day Hoover Dam. Powell and nine men none of whom had prior whitewater experience set out in May. After braving the rapids of the Gates of Lodore, Cataract Canyon and other gorges along the Colorado, the party arrived at the mouth of the Little Colorado River, where Powell noted down arguably the most famous words ever written about the Grand Canyon of the Colorado: We are now ready to start on our way down the Great Unknown. Our boats, tied to a common stake, are chafing each other, as they are tossed by the fretful river. They ride high and buoyant, for their loads are lighter than we could desire. We have but a month's rations remaining. The flour has been re-sifted through the mosquito net sieve; the spoiled bacon has been dried, and the worst of it boiled; the few pounds of dried apples have been spread in the sun, and re-shrunken to their normal bulk; the sugar has all melted, and gone on its way down the river; but we have a large sack of coffee. The lighting of the boats has this advantage: they will ride the waves better, and we shall have little to carry when we make a portage. We are three-quarters of a mile in the depths of the earth, and the great river shrinks into insignificance, as it dashes its angry waves against the walls and cliffs, that rise to the world above; they are but puny ripples, and we but pigmies, running up and down the sands, or lost among the boulders. We have an unknown distance yet to run; an unknown river yet to explore....
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output: Green
Please answer this: Read the following paragraph and extract the answer for the question: What's the full name of the FBI agent's superior? In 1978, con artists Irving Rosenfeld and Sydney Prosser have started a relationship, and are working together. Sydney has improved Rosenfeld's scams, posing as English aristocrat "Lady Edith Greensly". Irving loves Sydney, but is hesitant to leave his unstable wife Rosalyn, fearing he will lose contact with his adopted son Danny. Rosalyn has also threatened to report Irving to the police if he leaves her. FBI agent Richie DiMaso catches Irving and Sydney in a loan scam, but offers to release them if Irving can line up four additional arrests. Richie believes Sydney is English, but has proof that her claim of aristocracy is fraudulent. Sydney tells Irving she will manipulate Richie, distancing herself from Irving. Irving has a friend pretending to be a wealthy Arab sheikh looking for potential investments in America. An associate of Irving's suggests the sheikh do business with Mayor Carmine Polito of Camden, New Jersey, who is campaigning to revitalize gambling in Atlantic City, but has struggled in fund-raising. Carmine seems to have a genuine desire to help the area's economy and his constituents. Richie devises a plan to make Mayor Polito the target of a sting operation, despite the objections of Irving and of Richie's boss, Stoddard Thorsen. Sydney helps Richie manipulate an FBI secretary into making an unauthorized wire transfer of $2,000,000. When Stoddard's boss, Anthony Amado, hears of the operation, he praises Richie's initiative, pressuring Stoddard to continue.
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Answer: Stoddard Thorsen
input question: Read the following paragraph and extract the answer for the question: Which of the moderate hiking trails is estimated to be longer? Most park visitors sightsee using the scenic drive, which provides access to 13 viewpoints over the amphitheaters. Bryce Canyon has eight marked and maintained hiking trails that can be hiked in less than a day (round trip time, trailhead): Mossy Cave (one hour, State Route 12 northwest of Tropic), Rim Trail (56 hours, anywhere on rim), Bristlecone Loop (one hour, Rainbow Point), and Queens Garden (12 hours, Sunrise Point) are easy to moderate hikes. Navajo Loop (12 hours, Sunset Point) and Tower Bridge (23 hours, north of Sunrise Point) are moderate hikes. Fairyland Loop (45 hours, Fairyland Point) and Peekaboo Loop (34 hours, Bryce Point) are strenuous hikes. Several of these trails intersect, allowing hikers to combine routes for more challenging hikes. The park also has two trails designated for overnight hiking: the 9-mile (14 km) Riggs Spring Loop Trail and the 23-mile (37 km) Under-the-Rim Trail. Both require a backcountry camping permit. In total there are 50 miles (80 km) of trails in the park. More than 10 miles (16 km) of marked but ungroomed skiing trails are available off of Fairyland, Paria, and Rim trails in the park. Twenty miles (32 km) of connecting groomed ski trails are in nearby Dixie National Forest and Ruby's Inn. The air in the area is so clear that on most days from Yovimpa and Rainbow points, Navajo Mountain and the Kaibab Plateau can be seen 90 miles (140 km) away in Arizona. On extremely clear days, the Black Mesas of eastern Arizona and western New Mexico can be seen some 160 miles (260 km) away.The park also has a 7.4 magnitude night sky, making it one of the darkest in North America. Stargazers can, therefore, see 7,500 stars with the naked eye, while in most places fewer than 2,000 can be seen due to light pollution, and in many large cities only a few dozen can be seen. Park rangers host public stargazing events and evening programs on astronomy, nocturnal animals, and night sky protection. The Bryce Canyon Astronomy Festival, typically held in June, attracts thousands...???
output answer:
Tower Bridge