Problem: Given the question: Given the following context:  At a bar, Deb Clarington, a camera operator for the local  news, sees an attractive man, Ryan Waverly.  Although initially too insecure to approach him, her friend Ruby talks her into it.  While awkwardly hitting on him, Deb is interrupted by Ryan's fiance, who breaks up with him when he refuses to accept a high-paying job at his father's company.  The next thing Deb knows, she wakes in Ryan's bed with a hangover.  Ryan asks her to leave, and after several attempts to seduce him, she reluctantly agrees, seeing people attack and cannibalize each other.  Deb saves Ryan from a zombie attack, and they return to his apartment. Deb once again attempts to seduce Ryan, who is more concerned with checking on his family and ex-fiancee.  Since he has no car, Deb agrees to help him.  They first visit his elderly neighbor for supplies.  Finding her apparently dead, they bicker over arrangements, only to be surprised when she rises as a zombie.  After they kill her, Deb drops the supplies, alerting many zombies.  The two flee to her car, agreeing that they will not stop until they reach Ryan's family.  Along the way, Deb eagerly rams several zombies; Ryan objects, saying they may be treatable.  Although skeptical of his idealistic optimism, Deb agrees not to unnecessarily kill them. Despite their earlier agreement, Deb takes a detour to visit to Ruby, who is now a zombie.  Convinced the zombies may be treatable, Deb traps Ruby in the car's trunk.  At Ryan's father's mansion, the two meet Chaz, Ryan's brother, who quizzes them on whether they are zombies before allowing them in.  Ryan is reunited with Stacy, and Ryan's father, Frank, reveals that his water treatment plant spread the zombie virus to the town.  When Deb pushes for more information, he blames the mayor for pushing an environmentally dangerous project, to Ryan's disgust.  answer the following question:  Which person rams several zombies with their car?
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The answer is:
Deb Clarington

input question: Given the following context:  Almost 250 different fires started in Yellowstone and the surrounding National Forests between June and August. Seven of them were responsible for 95% of the total burned area. At the end of July, the National Park Service and other agencies had fully mobilized available personnel, and yet the fires continued to expand. Smaller fires burned into each other, propelled by dry storms which brought howling winds and dry lightning strikes but no rain. On August 20, the single worst day of the fires and later dubbed "Black Saturday", more than 150,000 acres (610 km2) were consumed during one of many intense fires. Ash from the fires throughout the park drifted as far away as Billings, Montana, 60 miles (97 km) to the northeast. The wind driven flames jumped roads and firelines, and burning embers started new fires a mile (1.6 km) or more ahead of the main fires. Ground fires raced the fuel ladder to the forest canopy and became crown fires with flames over 200 feet (61 m) high. On that single day, more Yellowstone land burned than in all other fires combined since the establishment of the park. Throughout the summer, fires made huge advances of 5 to 10 miles (8.0 to 16.1 km) a day, and there were even occasions when more than 2 miles (3.2 km) in one hour were recorded.One large group of fires was known as the Snake River Complex. These fires were in the southern section of the park, in the headwaters region of the Yellowstone and Snake Rivers. The largest fire in the group was the Shoshone fire which was started by lightning on June 23. The prescribed natural burn policy was still in effect, and at first no efforts were made to suppress this fire. It smoldered with little movement for several weeks, then rapidly started expanding towards the northeast on July 20.The Red fire started near Lewis Lake on July 1, and like the Shoshone fire, advanced little for several weeks. The fire then moved northeast on July 19, and combined with the Shoshone fire in August. As these two fires advanced towards the Grant Village...  answer the following question:  What fire had no efforts to suppress it at first because of the policy that was in effect????
output answer: Shoshone fire

Please answer this: Given the following context:  Drilling fluids are necessary for borehole stability in deep cores, and can also be used to circulate cuttings away from the bit.  Fluids used include water, ethanol/water and water/ethylene glycol mixtures, petroleum fuels, non-aromatic hydrocarbons, and n-butyl acetate. Water is the cheapest and cleanest option; it may be present on the glacial surface or may be created by thermal drilling.  In cold ice some form of antifreeze is necessary, or heat must be reapplied by reaming the hole periodically. Ethanol and water.  Ethanol acts as an anti-freeze in water; at sufficient concentrations it can reduce the freezing temperature of the mixture to well below any temperature likely to be encountered in ice drilling.  The concentration must be chosen to prevent the liquid freezing and also to maintain the borehole against the ice overburden pressure.  Because the density of the mixture decreases with lower temperatures, vertical convection will develop in boreholes where temperatures decrease with depth, as the lighter mixture rises.  This causes slush to form in the borehole, though successful drilling is still possible.  Ethanol is one of the cheapest options for a drilling fluid, and requires less storage space than other options because in use it is diluted with water.  A Soviet expedition left an 800 m borehole in Antarctica filled with ethanol and water at an ice temperature of −53 °C; after 11 months the borehole remained open and drilling was resumed with no problems.  A problem with this option is that the mixture will penetrate cores that have cracks. Ethylene glycol and water was used at Camp Century in 1966 in the lower part of the hole to dissolve the cuttings. Petroleum fuels.  This includes diesel, jet fuel, and kerosene. They are inexpensive and easily available, and were once in common use; disadvantages include flammability and the aromatics they contain, which are a health hazard. Non-aromatic hydrocarbons.  As of 2009 these had become the most commonly used drilling fluids; eliminating the...  answer the following question:  What is the name of that which had become the most commonly used drilling fluid by 2009?
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Answer:
Non-aromatic hydrocarbons